Grand Teton National Park, Wyoming

Today's Image of the Day from the European Space Agency features the world's largest iceberg currently in existence, known as Iceberg A-23a. It is a colossal tabular iceberg that originated from Antarctica’s Filchner-Ronne Ice Shelf.&nbsp;



“The ice mass is currently lodged on the seabed 73 kilometers (45 miles) from the remote island of South Georgia, which can be seen just poking out from beneath the cloud cover,” noted <a href="https://www.esa.int/ESA_Multimedia/Images/2025/05/Earth_from_Space_World_s_biggest_iceberg" target="_blank" rel="noreferrer noopener">ESA</a>.



“Although the size of the island is not clearly visible in this image, it is only marginally bigger than the iceberg.”&nbsp;



<h2 class="wp-block-heading" id="h-largest-active-iceberg">Largest active iceberg</h2>



This massive chunk of ice initially calved off the ice shelf in 1986, making it not only the largest active iceberg today but also among the oldest still afloat.



For decades, <a href="https://www.earth.com/news/worlds-largest-iceberg-a23a-undergoing-major-erosion/" target="_blank" rel="noreferrer noopener">A-23a</a> remained grounded in the Weddell Sea, lodged against the seafloor and relatively immobile. However, in recent years - particularly in 2020 - it began to drift again, having finally dislodged.&nbsp;



Since then, it has slowly but steadily been moving northward, driven by ocean currents and winds. By late 2023, A-23a had entered the open waters of the Southern Ocean and was heading toward the region around South Georgia Island in the South Atlantic - a typical path for icebergs from the Weddell Sea. 



This drift raised concerns about possible ecological impacts, especially if the iceberg were to run aground near South Georgia, potentially disrupting local marine ecosystems and wildlife, such as seals and penguins that rely on open access to the ocean.



<h2 class="wp-block-heading" id="h-an-enormous-chunk-of-ice">An enormous chunk of ice</h2>



A-23a is enormous in scale. At its peak size, it covered an area of around 3,900 square kilometers - that’s larger than the U.S. state of Rhode Island or roughly one-and-a-half times the size of Luxembourg.&nbsp;



It’s around 400 meters thick, about the height of the Empire State Building, and the portion visible above water represents only a fraction of its total size, as most of the iceberg lies below the surface.&nbsp;



“A23a has started to disintegrate and many smaller blocks of ice are visible in the dark blue ocean, particularly to the north of the berg. The disintegration is typical of icebergs that reach this far north and is caused by the warmer sea temperatures and weather conditions,” said ESA.



Despite these losses, however, it has retained much of its original bulk.



<h2 class="wp-block-heading" id="h-significance-of-iceberg-a-23a-nbsp">Significance of Iceberg A-23a&nbsp;</h2>



Iceberg A-23a carries significance not just due to its size but also for what it tells scientists about <a href="https://www.earth.com/news/trees-are-losing-the-battle-against-climate-change/" target="_blank" rel="noreferrer noopener">climate</a> and ocean dynamics.&nbsp;



Iceberg drift patterns are closely monitored via satellite imagery to study how changing climate conditions affect calving rates, iceberg longevity, and meltwater inputs into the ocean.&nbsp;



As it continues its journey, A-23a will gradually shrink, releasing vast quantities of freshwater into the sea, which can affect local salinity levels and nutrient distribution.



While icebergs this large are rare, they’re not unprecedented. In 2000, an even larger iceberg, B-15, broke away from the Ross Ice Shelf and initially covered more than 11,000 square kilometers. But that iceberg has long since broken into smaller fragments and dissipated.&nbsp;



What makes A-23a remarkable is its longevity and recent reactivation, allowing researchers to witness the slow transformation of a giant <a href="https://www.earth.com/news/new-ecosystem-sea-creatures-never-before-seen-revealed-antarctica-iceberg-breakup/" target="_blank" rel="noreferrer noopener">frozen relic</a> that had remained stationary for most of its existence.



<h2 class="wp-block-heading" id="h-large-icebergs-and-potential-collisions">Large icebergs and potential collisions</h2>



Large icebergs, particularly those calved from Antarctica’s vast ice shelves, can span hundreds to thousands of square kilometers and weigh billions of tons. When they break away, they typically drift into the Southern Ocean, carried by wind and powerful ocean currents like the Antarctic Circumpolar Current.&nbsp;



These icebergs gradually melt as they travel into warmer waters, but some, like <a href="https://www.earth.com/news/worlds-largest-iceberg-a23a-breaks-free-from-ocean-cyclone/" target="_blank" rel="noreferrer noopener">A23A</a> or the infamous B-15, can persist for years or even decades.



As they drift, large icebergs can become hazards - primarily to the environment but occasionally to shipping lanes. Potential collisions usually involve these ice masses grounding on continental shelves or crashing into islands or seafloor ridges.&nbsp;



When such collisions occur, they can damage benthic ecosystems, which are sensitive and often host slow-growing, endemic species. The scraping of a massive iceberg across the seabed disrupts sediments and organisms, potentially changing that habitat for years.



<h2 class="wp-block-heading" id="h-ecological-chain-reactions">Ecological chain reactions</h2>



Additionally, when a large iceberg grounds near biologically rich areas like South Georgia Island, it can block access to feeding zones used by marine mammals and <a href="https://www.earth.com/news/nearly-all-seabirds-have-ingested-microplastics/" target="_blank" rel="noreferrer noopener">seabirds</a>, forcing them to take longer, more exhausting foraging trips.&nbsp;



This can lead to increased mortality, especially during breeding seasons when animals are tethered to colonies or nurseries.&nbsp;



These disruptions highlight how icebergs, though natural parts of the cryosphere, can trigger ecological chain reactions as they interact with biologically productive and topographically complex regions.



The image was captured on April 5, 2025 by the Ocean and Land Color Instrument on <a href="https://www.esa.int/Applications/Observing_the_Earth/Copernicus/Sentinel-3" target="_blank" rel="noreferrer noopener">Copernicus Sentinel-3</a>.



Image Credit: ESA



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Satellite captures a glimpse of the world's largest iceberg

Today's Image of the Day from the European Space Agency...

Today's Image of the Day from the European Space Agency features UGC 5460, a spiral galaxy that is located about 60 million light-years away in the constellation Ursa Major.&nbsp;



“This image combines four different wavelengths of light to reveal UGC 5460’s central bar of stars, winding spiral arms and bright blue star clusters. Also captured in the upper left-hand corner of this image is a far closer object: a star just 577 light-years away in our own galaxy,” said <a href="https://www.esa.int/ESA_Multimedia/Images" target="_blank" rel="noreferrer noopener">ESA</a>.



“UGC 5460 has hosted two recent supernovae named SN 2011ht and SN 2015as. It’s because of these two stellar explosions that Hubble targeted this galaxy, collecting data for three observing programmes that aim to study various kinds of supernovae.”&nbsp;



<h2 class="wp-block-heading" id="h-a-core-collapse-supernova-nbsp">A core-collapse supernova&nbsp;</h2>



SN 2015as is an example of a core-collapse supernova. This type of <a href="https://www.earth.com/news/supernova-explosions-could-damage-distant-planets/" target="_blank" rel="noreferrer noopener">supernova</a> occurs when the core of a massive star - typically with more than 8 times the mass of the sun - can no longer support its own gravity after exhausting its nuclear fuel. 



This causes the core to collapse under its own weight, leading to an extremely violent explosion. The collapse triggers the release of an enormous amount of energy, expelling the outer layers of the star into space.



In the aftermath of the explosion, a dense <a href="https://www.earth.com/news/shockingly-bright-carbon-monoxide-detected-in-supernova-remnant/" target="_blank" rel="noreferrer noopener">remnant</a> is created. This is often a neutron star or black hole, depending on the mass of the original star. Core-collapse supernovae are some of the most powerful events in the universe.



According to ESA, Hubble observations of SN 2015as will help researchers understand what happens when the expanding shockwave of a <a href="https://www.earth.com/news/supernova-dandelion-year-1181-leaves-behind-zombie-star-defying-death/" target="_blank" rel="noreferrer noopener">supernova</a> collides with the gas that surrounds the exploded star.



<h2 class="wp-block-heading" id="h-rare-stars-with-large-eruptions-nbsp">Rare stars with large eruptions&nbsp;</h2>



“SN 2011ht might have been a core-collapse supernova as well, but it could also be an impostor called a luminous blue variable. Luminous blue variables are rare stars that experience eruptions so large that they can mimic supernovae,” noted ESA.



“Crucially, luminous blue variables emerge from these eruptions unscathed, while stars that go supernova do not. Hubble will search for a stellar survivor at SN 2011ht’s location, and the explosion’s identity may be revealed at last.”



<h2 class="wp-block-heading" id="h-what-is-a-spiral-galaxy">What is a spiral galaxy?</h2>



Spiral galaxies are some of the most recognizable and beautiful structures in the universe. They are known for their distinctive arms that spiral outward from a central bulge.&nbsp;



These galaxies are typically composed of stars, gas, dust, and dark matter. The arms are often sites of intense <a href="https://www.earth.com/news/fluffy-molecular-clouds-may-change-our-understanding-of-star-formation/" target="_blank" rel="noreferrer noopener">star formation</a>, where clouds of gas collapse to form new stars. 



In the center of a spiral galaxy lies a dense concentration of older stars and, often, a supermassive black hole.



<h2 class="wp-block-heading" id="h-structure-of-a-spiral-galaxy-nbsp">Structure of a spiral galaxy&nbsp;</h2>



The structure of a spiral galaxy is generally divided into three main components: the disk, the bulge, and the halo.&nbsp;



The disk is where the spiral arms are located and contains most of the galaxy's visible stars and interstellar medium.&nbsp;



The bulge is a tightly packed region of older stars at the core, and the halo consists of a sparse collection of stars and globular clusters that surround the galaxy.&nbsp;



Spiral galaxies can be classified into different types based on the tightness and number of their spiral arms, as well as the size of their central bulge.



<h2 class="wp-block-heading" id="h-the-milky-way-galaxy">The Milky Way galaxy</h2>



Our solar system is located within a large spiral galaxy known as the Milky Way. The name refers to its appearance as a dim, milky band of light stretching across the night sky.&nbsp;



The term "Milky Way" comes from ancient Greek mythology, where it was associated the goddess Hera's milk spilling into the sky. In Greek, it was called "Galaxias Kyklos," meaning "milky circle."&nbsp;



Spanning about 100,000 light-years in diameter, the Milky Way is composed of stars, gas, dust, and dark matter. The galaxy has a distinct disk shape with spiral arms that wind outward from a central bulge, which houses a supermassive <a href="https://www.earth.com/news/milky-ways-black-hole-unleashes-mysterious-flares/" target="_blank" rel="noreferrer noopener">black hole</a>. 



Our sun is located in one of the spiral arms - known as the Orion Arm - positioned roughly halfway from the center to the outer edge.&nbsp;



The Milky Way is part of a small group of galaxies called the Local Group, which includes the Andromeda Galaxy and several smaller galaxies.



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Hubble views a spiral galaxy with stellar explosions

Today's Image of the Day from NASA Earth Observatory features a blanket of dust over the Tarim Basin - a vast, arid region in northwestern China. 



Mountain peaks are visible through a break in the dust. These peaks are part of Tekilik Shan, a subrange of the Kunlun Mountains.



Though not as widely known as some other mountain ranges in the area, Tekilik Shan plays a significant role in shaping local <a href="https://www.earth.com/news/extreme-weather-is-pushing-nature-toward-a-breaking-point/" target="_blank" rel="noreferrer noopener">weather</a> patterns and geography.



Its snow-covered peaks can rise above 13,000 feet, contributing to the dramatic elevation differences that define the basin’s borders.



<h2 class="wp-block-heading" id="h-dust-storms-in-the-tarim-basin-nbsp">Dust storms in the Tarim Basin&nbsp;</h2>



Spring marks the height of <a href="https://www.earth.com/news/sahara-desert-dust-storms-carry-harmful-bacteria-and-fungi-around-the-globe/" target="_blank" rel="noreferrer noopener">dust storm</a> activity in the Tarim Basin, particularly in its southern region.&nbsp;



“It’s a time of year when regional wind patterns shift in ways that cause winds and storm systems to sweep in from the northwest,” noted <a href="https://earthobservatory.nasa.gov/images/154126/a-curtain-of-dust-over-the-tarim-basin" target="_blank" rel="noreferrer noopener">NASA</a>.



“In early spring, when landscapes in this region are especially dry and have minimal vegetation, land surfaces warm rapidly under the Sun’s heat every morning, fueling convection that can help loft dust upward by the afternoon.”



<h2 class="wp-block-heading" id="h-fingerlike-dust-formations-nbsp">Fingerlike dust formations&nbsp;</h2>



Satellite images revealed dust formations with fingerlike shapes that mirrored the landscape below. These projections aligned with valleys, which channeled and directed the airborne dust.&nbsp;



Ralph Kahn is an atmospheric scientist at the Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder and scientist emeritus at NASA’s Goddard Space Flight Center.



According to Kahn, the dust may have been “self-lofting.” In this process, sunlight heats recently stirred-up surface dust, creating pockets of convection that lift it even higher into the air.



This interpretation is supported by hourly observations from Japan’s Himawari-9 geostationary satellite, which showed dust gradually rising into the Tekilik Shan throughout the day. By late afternoon, the storm had grown dense enough to obscure the mountains.&nbsp;



<h2 class="wp-block-heading" id="h-decline-in-atmospheric-dust">Decline in atmospheric dust</h2>



Long-term satellite data from MODIS suggest that <a href="https://www.earth.com/news/dust-storms-in-the-gulf-of-alaska-help-shape-the-global-climate/" target="_blank" rel="noreferrer noopener">atmospheric dust</a> levels in this region have declined by about 1.5 percent each year since the early 2000s.&nbsp;



NASA researcher Hongbin Yu attributes this trend mainly to springtime changes - such as altered wind speeds, <a href="https://www.earth.com/news/how-soil-moisture-can-predict-severe-storms/" target="_blank" rel="noreferrer noopener">soil moisture</a>, or vegetation cover - rather than shifts in other seasons.



<h2 class="wp-block-heading" id="h-rainfall-in-the-tarim-basin-nbsp">Rainfall in the Tarim Basin&nbsp;</h2>



“The <a href="https://www.britannica.com/place/Takla-Makan-Desert" target="_blank" rel="noreferrer noopener">Takla Makan Desert</a> is one of the driest, most barren expanses on Earth. Flanked by mountain ranges on three sides and parched by the resulting <a href="https://glossary.ametsoc.org/wiki/Rain_shadow" target="_blank" rel="noreferrer noopener">rain shadow</a>, parts of the Tarim Basin receive no more than 10 millimeters (0.4 inches) of rain per year,” noted NASA.



“Dust storms can lead to public health problems in populated areas downwind by transporting small particles, bacteria, and viruses that infiltrate human respiratory systems.”&nbsp;



NASA added that dust storms can also affect Earth’s climate by scattering and absorbing incoming solar radiation and changing the properties of clouds.



<h2 class="wp-block-heading" id="h-landscape-of-the-tarim-basin-nbsp">Landscape of the Tarim Basin&nbsp;</h2>



The Tarim Basin is one of the largest endorheic basins in the world, meaning that its rivers do not drain into the sea but instead flow into interior lakes or evaporate.&nbsp;



The basin is encircled by three mountain ranges: the Tien Shan to the north, the Kunlun Mountains to the south, and the Pamirs to the west. These ranges create a powerful rain shadow effect, making the region exceptionally dry.



At the heart of the Tarim Basin lies the Taklamakan Desert, one of the most extreme deserts on Earth. The desert is known for its high dunes, intense temperature swings, and minimal <a href="https://www.earth.com/news/extreme-rainfall-will-wreak-havoc-on-mountain-ranges-as-warming-climate-turns-snow-to-rain/" target="_blank" rel="noreferrer noopener">rainfall</a>.



<h2 class="wp-block-heading" id="h-history-and-geology">History and geology</h2>



Despite its harsh environment, the basin has been historically significant. It was a key section of the ancient Silk Road, with several oases such as Kashgar, Khotan, and Loulan serving as vital trading and cultural centers for centuries.



Geologically, the basin is rich in natural resources, particularly oil and natural gas, and has become a focal point for China's energy exploration and development.&nbsp;



The region’s challenging climate and remote location, however, make infrastructure development and human habitation difficult.&nbsp;



The image was captured on March 27, 2025 by the Operational Land Imager instrument on Landsat 8.



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Blanket of dust covers China’s Tarim Basin

Today's Image of the Day from NASA Earth Observatory features...

Today's Image of the Day from the European Space Agency features NGC 5335 - a barred spiral galaxy located in the constellation Virgo. 



The photo was captured by the Hubble Space Telescope. According to <a href="https://www.esa.int/ESA_Multimedia/Images/2025/04/Barred_Spiral_Galaxy_NGC_5335" target="_blank" rel="noreferrer noopener">ESA</a>, thousands of distant galaxies are speckled throughout the image in a variety of colors.&nbsp;



Hubble is revealing how <a href="https://www.earth.com/news/hidden-galaxies-discovery-would-upend-current-understanding-of-universe/" target="_blank" rel="noreferrer noopener">galaxies</a> form, grow, and evolve over cosmic time by capturing detailed images of galaxies at various stages of development, from the nearby universe to billions of light-years away. 



Hubble images have shown us that galaxies collide and merge, that star formation varies across different types of galaxies, and that supermassive black holes often lie at their centers.



<h2 class="wp-block-heading" id="h-studying-ngc-5335">Studying NGC 5335</h2>



The galaxy NGC 5335 lies approximately 160 million light-years from Earth. It is classified as an SB(s)bc type galaxy, indicating a well-defined bar structure across its center with less distinct spiral arms. The galaxy was discovered by astronomer William Herschel on May 13, 1793. 



Like many galaxies of its type, NGC 5335 features active <a href="https://www.earth.com/news/star-formation-reignited-in-the-galaxy-leo-p-after-billions-of-years/" target="_blank" rel="noreferrer noopener">star formation</a>, especially in its spiral arms, where interstellar gas and dust provide the raw material for new stars. 



Observations in different wavelengths, including infrared and ultraviolet, help astronomers study its stellar population and the dynamics of its central bar.



<h2 class="wp-block-heading" id="h-hubble-s-view-of-the-spiral-galaxy-nbsp">Hubble’s view of the spiral galaxy&nbsp;</h2>



“NGC 5335 is categorized as a flocculent spiral galaxy with patchy streamers of star formation across its disk. There is a striking lack of well-defined spiral arms that are commonly found among galaxies, including our Milky Way,” noted ESA.



“A notable bar structure slices across the center of the galaxy. The bar channels gas inwards toward the galactic center, fueling star formation.”&nbsp;



“Such bars are dynamic in galaxies and may come and go over two-billion-year intervals. They appear in about 30 percent of observed galaxies, including our Milky Way.”



<h2 class="wp-block-heading" id="h-galactic-bar-in-the-milky-way-nbsp">Galactic bar in the Milky Way&nbsp;</h2>



The bar in the <a href="https://www.earth.com/news/astronomers-found-something-strange-at-core-of-milky-way-galaxy-webb-meerkat/" target="_blank" rel="noreferrer noopener">Milky Way</a> is a vast, elongated structure composed mostly of stars, stretching across the galaxy’s central region. It is a key feature of our galaxy’s architecture, spanning about 27,000 light-years and oriented at an angle relative to the galaxy’s spiral arms.&nbsp;



Astronomers believe it plays a crucial role in the dynamics and evolution of the Milky Way by funneling gas inward toward the galactic center, which can feed star formation and fuel the supermassive black hole at the core.&nbsp;



The bar is thought to have formed from instabilities in the galactic disk and continues to influence the motion of stars and the overall gravitational balance of the galaxy.&nbsp;



Observations in infrared and radio wavelengths, which can pierce through the dust in the galactic plane, have helped scientists map the bar’s size, shape, and orientation.



<h2 class="wp-block-heading" id="h-the-constellation-virgo-nbsp">The constellation Virgo&nbsp;</h2>



Virgo is one of the most prominent and well-known constellations in the night sky, both astronomically and mythologically. It is the second-largest constellation by area and lies along the zodiac, making it one of the twelve constellations through which the <a href="https://www.earth.com/news/team-creates-video-showing-the-sun-in-gamma-rays-over-a-14-year-period/" target="_blank" rel="noreferrer noopener">Sun</a> appears to move during the year. 



Virgo is most visible in the evening sky in the Northern Hemisphere during spring, particularly in April and May. Its name means “virgin” in Latin.



Virgo is traditionally associated with various fertility and agriculture goddesses across different cultures, including the Greek goddess Demeter and her daughter Persephone, as well as the Roman goddess Ceres. 



In some myths, Virgo represents Astraea, the virgin goddess of justice who fled to the heavens during the corruption of mankind.



<h2 class="wp-block-heading" id="h-astronomical-significance-of-virgo">Astronomical significance of Virgo</h2>



Astronomically, Virgo is situated between Leo to the west and Libra to the east. One of its most notable stars is Spica, the brightest star in Virgo and one of the brightest in the night sky.&nbsp;



Spica is a blue-white giant, located approximately 250 light-years from <a href="https://www.earth.com/news/was-early-earth-a-purple-planet-scientists-say-its-possible/" target="_blank" rel="noreferrer noopener">Earth</a>. It has been important for navigation and agriculture for centuries, marking planting and harvest times in ancient calendars.



Virgo is also of great interest to astronomers because it hosts the Virgo Cluster, a massive cluster of galaxies about 65 million light-years away.&nbsp;



This cluster contains more than 1,000 galaxies, and it's part of the larger Virgo Supercluster, which also includes our own Local Group of galaxies. This makes Virgo a key area for studying large-scale structures in the universe.



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Hubble spotlights galaxies in the constellation Virgo

Today's Image of the Day from NASA Earth Observatory features dust streaming off the coast of Iran in January 2025.



“Some of the desert dust was carried across the Gulf of Oman to the Arabian Peninsula, degrading air quality for those in its path,” noted <a href="https://earthobservatory.nasa.gov/images/153859/desert-dust-streams-from-iran" target="_blank" rel="noreferrer noopener">NASA</a>.



“The airborne material appears to primarily originate in the dried bed of the intermittent lake known as Hamun-e Jazmurian (Hamun-e Jaz Murian), while some may be blown from coastal areas." 



"Along with arid regions such as the Garagum and Lut deserts and the Sistan Basin, the lakebed is a major source of dust in southwest Asia.”



<h2 class="wp-block-heading" id="h-precipitation-in-the-jazmurian-basin">Precipitation in the Jazmurian Basin</h2>



According to NASA, some areas of the Jazmurian Basin receive less than four inches of rain annually, on average, and evaporation rates are high. During wet times, however, parts of the basin may be covered by an intermittent lake, marshland, or other vegetation.&nbsp;



“Terra’s MODIS sensor has previously captured images of the area when water is present in Hamun-e Jazmurian and when green vegetation fringes the lakebed,” said NASA.



“In early 2025, the land was dry enough for winds to blow dust plumes south-southwest over the Gulf of Oman. Dust traveled across the water to the coast of the United Arab Emirates, where the haze reduced visibility in places, according to news reports.”



<h2 class="wp-block-heading" id="h-particles-in-dust-storms">Particles in dust storms</h2>



In addition to disrupting transportation and other daily activities, the suspended particles in dust storms can pose significant health risks. 



Recent research has revealed that dust from the Jazmurian Basin often contains heavy metals and other potentially harmful substances, such as silica and organic pollutants, which can negatively impact both human and ecosystem health.&nbsp;



Prolonged exposure to these particles has been linked to respiratory and cardiovascular issues, as well as the exacerbation of pre-existing health conditions like asthma and bronchitis.



<h2 class="wp-block-heading" id="h-environmental-impact-of-dust-storms">Environmental impact of dust storms</h2>



The <a href="https://www.earth.com/news/dust-is-an-understudied-contributor-to-climate-change/" target="_blank" rel="noreferrer noopener">environmental impact</a> of dust storms extends beyond human health. The fine particles can settle on vegetation, reducing photosynthesis and agricultural productivity.&nbsp;



Dust deposition can also alter soil composition by introducing heavy metals and changing nutrient balances, which may affect crop growth and soil microbial communities. 



Such changes can lead to long-term degradation of arable land and disrupt local food security.



<h2 class="wp-block-heading" id="h-dust-in-the-jazmurian-basin-nbsp">Dust in the Jazmurian Basin&nbsp;</h2>



Communities near the Jazmurian Basin are particularly vulnerable to the effects of dust storms due to limited access to healthcare and mitigation resources.



Seasonal changes and climate conditions, including prolonged droughts and desertification, further intensify the frequency and severity of dust storms in the region.&nbsp;



This creates a cycle of environmental and health challenges, making it imperative to develop strategies for prevention and adaptation.



Potential measures include reforestation and soil stabilization projects to reduce dust emissions, stricter regulations to limit activities that contribute to desertification, and public health initiatives to educate communities on protective measures during dust events.&nbsp;



Investing in early warning systems and <a href="https://www.earth.com/news/climate-driven-wildfires-worsen-u-s-air-quality-and-health/" target="_blank" rel="noreferrer noopener">air quality</a> monitoring can also help minimize exposure and protect both human populations and the environment.



<h2 class="wp-block-heading" id="h-significance-of-the-jazmurian-basin">Significance of the Jazmurian Basin</h2>



The Jazmurian Basin is a prominent endorheic basin located in southeastern Iran, spanning parts of the provinces of Sistan and Baluchestan as well as Kerman. It lies at the heart of an arid region characterized by sparse vegetation, high temperatures, and limited rainfall.&nbsp;



The basin is primarily fed by the Halil and Bampur rivers, which provide seasonal water flow to the basin's low-lying areas. At its center lies the Jazmurian Depression, which forms a seasonal playa or shallow lake, though it often dries up during extended dry periods.&nbsp;



The area holds geological and archaeological significance, offering insights into ancient human settlements and environmental changes over time.&nbsp;



Despite its harsh climate, the basin supports small-scale agriculture and serves as a critical habitat for certain desert-adapted wildlife. 



The image was captured on January 22 by the MODIS (Moderate Resolution Imaging Spectroradiometer) on NASA’s Terra satellite.&nbsp;



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Dust rises from the Jazmurian Basin in Iran

Today's Image of the Day from the European Space Agency features a brilliant stellar nursery located about 163,000 light-years away.



According to ESA, the image is one of the most photogenic examples of the many stellar nurseries observed by the NASA/ESA Hubble Space Telescope during its 30-year lifetime. 



“The portrait features the giant nebula NGC 2014 and its neighbor NGC 2020 which together form part of a vast star-forming region in the Large Magellanic Cloud, a satellite galaxy of the Milky Way,” noted <a href="https://www.esa.int/" target="_blank" rel="noreferrer noopener">ESA</a>.



<h2 class="wp-block-heading" id="h-what-is-a-stellar-nursery">What is a stellar nursery?</h2>



Stellar nurseries are regions in space where new stars are <a href="https://www.earth.com/news/baby-stars-release-sneezes-of-gas-and-dust-as-they-develop/" target="_blank" rel="noreferrer noopener">born</a> - often within vast clouds of gas and dust called molecular clouds.&nbsp;



These areas are fascinating because they are cradles of stellar evolution, where gravity causes clumps of gas to collapse, eventually forming protostars.&nbsp;



Over time, the protostars will heat up and start the nuclear fusion process that powers a star.



One of the most well-known stellar nurseries is the Orion Nebula, which is visible to the naked eye and located about 1,350 light-years from Earth.&nbsp;



<h2 class="wp-block-heading" id="h-dynamic-nature-of-a-stellar-nursery-nbsp">Dynamic nature of a stellar nursery&nbsp;</h2>



Within these nurseries, the balance between gravity and pressure determines the types of stars that form, from massive, luminous stars to smaller, cooler ones like our Sun.&nbsp;



The environment is incredibly dynamic, with powerful winds from young stars shaping the clouds and triggering the birth of even more stars.



These regions are often illuminated by the light from massive newborn stars - creating stunning, colorful displays. The light reveals the intricate structure of the dust and gas, sculpted by the energy of young stars.&nbsp;



<h2 class="wp-block-heading" id="h-significance-of-stellar-nurseries-nbsp">Significance of stellar nurseries&nbsp;</h2>



Stellar nurseries are essential for understanding the early stages of planetary formation, as protoplanetary disks (the material from which <a href="https://www.earth.com/news/planet-formation-new-insights-mechanics-physics/" target="_blank" rel="noreferrer noopener">planets form</a>) are often found around young stars in these regions.



Stellar nurseries play a crucial role in the ongoing evolution of <a href="https://www.earth.com/news/black-hole-is-starving-its-host-galaxy-of-star-forming-fuel/" target="_blank" rel="noreferrer noopener">galaxies</a>. They are responsible for the continuous birth of new stars that enrich the interstellar medium with heavier elements. This constant recycling of material is key to the development of future generations of stars and planets.&nbsp;



Furthermore, the study of these regions helps astronomers understand the fundamental processes that govern the life cycles of stars and the overall dynamics of the universe.



<h2 class="wp-block-heading" id="h-the-local-group">The Local Group</h2>



The Local Group is a collection of over 80 galaxies that includes the Milky Way, the Andromeda Galaxy, and the Triangulum Galaxy, along with numerous smaller dwarf galaxies. These galaxies are bound together by gravity and span a region roughly 10 million light-years across.&nbsp;



The <a href="https://www.earth.com/news/milky-ways-thin-disk-is-billions-of-years-older-than-we-thought/" target="_blank" rel="noreferrer noopener">Milky Way</a> and Andromeda are the dominant members, with their respective satellite galaxies orbiting them.&nbsp;



The Local Group is part of a larger structure known as the Virgo Supercluster, and its galaxies are moving toward the gravitational center of the Local Group, contributing to its dynamic nature.&nbsp;



<h2 class="wp-block-heading" id="h-large-magellanic-cloud">Large Magellanic Cloud</h2>



The Large Magellanic Cloud (LMC) is the fourth largest galaxy in the Local Group and can be seen with the naked eye from the Southern Hemisphere.&nbsp;



This irregular dwarf galaxy is home to the Tarantula Nebula, one of the most active star-forming regions in our cosmic neighborhood.&nbsp;



The Large Magellanic Cloud played a key role in astronomical history, particularly when the supernova SN 1987A was observed, providing valuable insights into stellar evolution.&nbsp;



The LMC's interaction with the Milky Way, along with its own companion, the Small Magellanic Cloud, is believed to influence its shape and star formation activity. Its proximity and unique properties make it a crucial object of study for understanding <a href="https://www.earth.com/news/massive-galactic-explosion-provides-clues-about-galaxy-evolution/" target="_blank" rel="noreferrer noopener">galaxy evolution</a>, star formation, and the dynamics of interacting galaxies.



Image Credit: NASA, ESA, and STScI



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Hubble captures a stunning stellar nursery

Today's Image of the Day from the European Space Agency features a galaxy that is located about 600 million light-years away in the constellation Gemini. The Hubble Space Telescope observed a supernova in this galaxy - which appears as a bright blue dot in the photograph.



“This picture was taken roughly two months after a supernova named SN 2022aajn was discovered in this galaxy. The supernova is visible as a blue dot at the center of the image, brightening the hazy body of the galaxy,” noted <a href="https://www.esa.int/ESA_Multimedia/Images" target="_blank" rel="noreferrer noopener">ESA</a>.



<h2 class="wp-block-heading" id="h-what-is-a-supernova">What is a supernova?</h2>



Supernovae are spectacular explosions marking the violent deaths of stars. These cosmic events are so luminous they can briefly outshine entire <a href="https://www.earth.com/news/galaxies-are-much-bigger-than-we-originally-believed-gas-clouds/" target="_blank" rel="noreferrer noopener">galaxies</a> and radiate more energy in a few weeks than our Sun will in its entire lifetime.&nbsp;



Supernovae explosions release heavy elements like carbon, oxygen, and iron into the interstellar medium. This stellar debris becomes the building blocks for new stars, planets, and even life itself. 



Supernovae also produce neutron stars or black holes, depending on the remaining core’s mass after the explosion.



<h2 class="wp-block-heading" id="h-types-of-supernovae-nbsp">Types of supernovae&nbsp;</h2>



There are two main types of supernovae, classified based on their causes. Type I supernovae occur when a <a href="https://www.earth.com/news/white-dwarf-stars-may-be-billions-of-years-older-than-estimated/" target="_blank" rel="noreferrer noopener">white dwarf</a> in a binary system accretes material from its companion star, eventually reaching a critical mass and triggering a runaway nuclear reaction.&nbsp;



Type II supernovae happen when a massive star, at least eight times the mass of the Sun, exhausts its nuclear fuel. Unable to support its own gravity, the core collapses, resulting in a massive explosion that ejects the outer layers into space.



<h2 class="wp-block-heading" id="h-measuring-the-distance-to-faraway-galaxies-nbsp">Measuring the distance to faraway galaxies&nbsp;</h2>



According to ESA, SN 2022aajn is a Type Ia supernova. “Supernovae of this type help astronomers measure the distance to faraway galaxies. This is possible because Type Ia supernovae are thought to be of the same intrinsic luminosity - no matter how bright they seem from Earth, they put out the same amount of light as other Type Ia supernovae.”



This means that researchers can calculate the distance to the supernova and its host galaxy by comparing the observed brightness to the expected brightness.



“This seemingly simple measurement method is complicated by cosmic dust. The farther away a supernova is, the fainter and redder it will appear - but intergalactic dust can make a supernova appear fainter and redder as well,” explained ESA.



“To understand this complication, researchers will use Hubble to survey a total of 100 Type Ia supernovae in seven wavelength bands from the ultraviolet to the near-infrared.”



By analyzing the brightness of supernovae across multiple wavelengths, researchers can distinguish between the influences of dust and distance, refining our measurements of galaxies that exist billions of light-years away.



<h2 class="wp-block-heading" id="h-how-many-galaxies-exist">How many galaxies exist?</h2>



The number of galaxies in the universe is estimated to be around two trillion, based on observations from Hubble and more recent data from the James Webb Space Telescope. 



This estimate is derived from deep-field surveys that reveal countless galaxies, each containing billions to trillions of <a href="https://www.earth.com/news/interstellar-tunnel-found-that-connects-our-solar-system-to-other-stars/" target="_blank" rel="noreferrer noopener">stars</a>.&nbsp;



However, because our observations are limited by current technology and the vastness of the cosmos, the actual number could be even higher.&nbsp;



Many <a href="https://www.earth.com/news/ancient-galaxies-formed-from-the-earliest-elements-in-the-universe/" target="_blank" rel="noreferrer noopener">galaxies</a> remain unseen due to their extreme distances, faintness, or obstruction by cosmic dust.



<h2 class="wp-block-heading" id="h-the-constellation-gemini-nbsp">The constellation Gemini&nbsp;</h2>



Gemini is one of the 12 zodiac constellations and is best known for representing the mythological twins Castor and Pollux. It is located in the northern celestial hemisphere and is most visible during winter in the Northern Hemisphere.&nbsp;



The constellation is bordered by Taurus to the west, Cancer to the east, and Orion to the south.



The two brightest stars in Gemini - Castor and Pollux - represent the heads of the twins and are easy to spot. Pollux, the brighter of the two, is an orange giant star about 34 light-years from Earth, while Castor is a more complex system made up of six stars. 



The constellation also contains several notable deep-sky objects, including the open cluster Messier 35, which is a beautiful collection of young stars located near Gemini’s western border.



Image Credit: ESA&nbsp;



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Hubble spots a supernova in the constellation Gemini 

Today's Image of the Day from the European Space Agency features the barred spiral galaxy NGC 1559, located around 35 million light-years away in the southern constellation Reticulum. The image was captured by the James Webb Space Telescope. 



"The data featured in this portrait make use of two of Webb’s instruments: the Mid-InfraRed Instrument (MIRI) and Near-InfraRed Camera (NIRCam)," noted <a href="https://www.esa.int/" target="_blank" rel="noreferrer noopener">ESA</a>.



"Here MIRI captures the glow of interstellar dust grains, which trace out the interstellar medium, the fuel for future star formation. NIRCam shows the light from stars, even young stars hidden behind prodigious amounts of dust. NIRCam also captures emission from ionized nebulae around young stars."



<h2 class="wp-block-heading" id="h-webb-reveals-galaxies-in-new-light">Webb reveals galaxies in new light</h2>



According to ESA, the data was collected by the <a href="https://sites.google.com/view/phangs/home">PHANGS team</a> as part of a program in which Webb will observe 55 <a href="https://www.earth.com/news/james-webb-captures-galaxies-that-are-too-old-to-exist/">galaxies</a> that have also been mapped by the Atacama Large Millimeter/submillimeter Array (ALMA) radio telescope, the Hubble Space Telescope, and more.&nbsp;



"By combining Webb’s unprecedented view of the dust and stars with data from these other facilities, the team aims to obtain a new, highly detailed view of how stars are born, live, and die in galaxies across the Universe."



<h2 class="wp-block-heading" id="h-ngc-1559-a-loner-in-space">NGC 1559: A loner in space</h2>



Although NGC 1559 appears to sit close to one of our nearest neighbors in the sky - the Large Magellanic Cloud (LMC) - this is just a trick of perspective, noted ESA.



While it is part of the Reticulum constellation, NGC 1559 is not part of the Local Group of galaxies but instead resides in a more distant region of space.



"In reality, NGC 1559 is physically nowhere near the LMC in space; in fact it truly is a loner, lacking the company of any nearby galaxies or membership of any galaxy cluster."



<h2 class="wp-block-heading" id="h-star-formation-in-ngc-1559">Star formation in NGC 1559</h2>



NGC 1559 is notable for its active star formation and strong magnetic fields. It has also been the site of several <a href="https://www.earth.com/news/supernova-explosions-could-damage-distant-planets/" target="_blank" rel="noreferrer noopener">supernovae</a>, making it of particular interest to astronomers who study stellar evolution and the life cycle of stars.



The structure of NGC 1559 includes well-defined spiral arms that contain young, hot stars and regions of ionized gas, indicative of ongoing <a href="https://www.earth.com/news/black-hole-is-starving-its-host-galaxy-of-star-forming-fuel/" target="_blank" rel="noreferrer noopener">star formation</a>.



<h2 class="wp-block-heading" id="h-an-extragalactic-wonder">An extragalactic wonder</h2>



Despite being relatively small compared to larger galaxies like the Milky Way, NGC 1559 is an important object for understanding how barred spiral galaxies evolve and the processes that trigger supernovae.



The galaxy’s remote location and active nature make it a fascinating subject of study in the field of extragalactic astronomy. 



The isolation of NGC 1559 allows for a clearer view of its structure without much interference from neighboring galaxies.



<h2 class="wp-block-heading" id="h-barred-spiral-galaxies">Barred spiral galaxies</h2>



Barred spiral galaxies are a type of spiral galaxy characterized by a central bar-shaped structure composed of stars. This bar extends out from the core and connects to the galaxy's spiral arms, which swirl outward in a graceful pattern.



Scientists believe that the bar plays a crucial role in the evolution of the galaxy, funneling gas towards the core and potentially triggering star formation or feeding a central black hole. 



The <a href="https://www.earth.com/news/newly-discovered-stars-milky-way-are-old-as-universe/" target="_blank" rel="noreferrer noopener">Milky Way</a>, our own galaxy, is an example of a barred spiral. These galaxies are quite common in the universe, making up about two-thirds of all observed spiral galaxies.



The bar itself is thought to be a temporary feature, developing as the galaxy matures and possibly disappearing over time as the dynamics of the stars change. 



<h2 class="wp-block-heading" id="h-the-reticulum-constellation">The Reticulum constellation</h2>



The Reticulum constellation is a small, faint constellation in the southern sky. Its name means "the reticle" in Latin, which refers to the crosshairs in an eyepiece of a telescope. 



The constellation was named in the 18th century by the French astronomer Nicolas Louis de Lacaille to honor the reticle he used in his scientific instruments. It is one of the 88 modern constellations recognized by the International Astronomical Union.



Image Credit: ESA/Webb, NASA &amp; CSA, A. Leroy, J. Lee and the PHANGS Team



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Spiral galaxy glows with young stars and interstellar dust

The MODIS instrument, short for Moderate Resolution Imaging Spectroradiometer, is a key instrument aboard the Terra and Aqua satellites. MODIS is playing a vital role in the development of Earth ecosystem models, able to predict global changes, which then assist policy makers in making informed decisions about the protection of the global environment.

Heavy snow and cloud cover in the Alps are seen in this Image of the day&nbsp;from the <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a> and features a look at heavy snow and low clouds in the Alps. Wildlife such as ibex live in the higher peaks to elevations of 3,400 m (11,155 ft), and plants such as Edelweiss grow in rocky areas in lower elevations as well as in higher elevations.

Heavy snow and cloud cover in the Alps

Monitoring Earth Changes with MODIS

Aqua is a NASA scientific research satellite that studies precipitation, evaporation, and water cycles. Terra and Aura make up the Earth Observing System. It's the second component of the system.

A frozen Lake Erie in February Today’s Image of the Day comes from the <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a> and features a look at a frozen <a href="https://www.earth.com/image/icy-lake-erie/">Lake Erie</a>, which is currently 93.3 percent iced over. A frozen Lake Erie in February
This false-color image was created using data from the Moderate Resolution Imaging Spectroradiometer (MODIS) on board the Aqua satellite to differentiate between snow, ice, and clouds.
Lake Erie /ˈɪəri/ (French: Lac Érié) is the fourth-largest lake (by surface area) of the five Great Lakes in North America, and the eleventh-largest globally if measured in terms of surface area.It is the southernmost, shallowest, and smallest by volume of the Great Lakes and therefore also has the shortest average water residence time. At its deepest point Lake Erie is 210 feet (64 metres) deep. 
Situated on the International Boundary between Canada and the United States, Lake Erie&#8217;s northern shore is the Canadian province of Ontario, specifically the Ontario Peninsula, with the U.S. states of Michigan, Ohio, Pennsylvania, and New York on its western, southern, and eastern shores. These jurisdictions divide the surface area of the lake with water boundaries. 
The lake was named by the Erie people, a Native American people who lived along its southern shore. The tribal name &#8220;erie&#8221; is a shortened form of the Iroquoian word erielhonan, meaning long tail
&#8212;
By <a href="mailto:rarnold@earth.com">Rory Arnold</a>, <a href="https://www.earth.com/staff">Earth.com</a> Staff Writer
Image Credit: <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a>

A frozen Lake Erie in February

Aqua Earth Observing Satellite

This beautiful photo gallery contains 50 incredible images of Earth from Space. These images were taken by astronauts onboard the International Space Station, as well as by a multitude of NASA satellites orbiting the earth.

Today’s Image of the Day comes thanks to the <a href="https://earthobservatory.nasa.gov/IOTD/view.php?id=90654&amp;eocn=home&amp;eoci=iotd_readmore">NASA Earth Observatory</a> and features a look at Super Typhoon Noru in the Pacific Ocean just south of <a href="https://www.earth.com/news/first-blue-chrysanthemums-created/">Japan</a>.
This image was captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite on July 31, 2017. 
At the time the photo was taken, Typhoon Noru was located just 250 kilometers south of Iwo Jima. Maximum sustained winds hit 150 miles per hour.
The storm briefly became a category 5 on July 30, before being downgraded to a category 4 one day later.
&#8211;
By <a href="mailto:rarnold@earth.com">Rory Arnold</a>, <a href="https://www.earth.com/staff">Earth.com</a> Staff Writer
Source: <a href="https://earthobservatory.nasa.gov/IOTD/view.php?id=90654&amp;eocn=home&amp;eoci=iotd_readmore">NASA Earth Observatory</a>

Super Typhoon Noru in the Pacific Ocean

Incredible Images of Earth from Space

Photos from the International Space Station are found in this awesome Earth.com image gallery. Flat-earthers won't agree, but these incredible photos of the Earth were taken by astronauts onboard the International Space Station. The International Space Station is a modular space station in low Earth orbit.

Northern Italy from the space station is seen here in this Image of the Day from the <a href="http://www.esa.int/">European Space Agency</a> (ESA). The view includes the top half of the Italian Peninsula, along with <a href="https://www.earth.com/image/wildfires-burn-northern-corsica/">Corsica</a> and Sardinia off the coast. This image was captured by ESA astronaut Paolo Nespoli on his third and final mission to the Space Station.

Northern Italy from the Space Station

Photos from the International Space Station

A new boat-shaped robot mimics the movement of fish and aquatic insects by using the Marangoni effect to glide across water surfaces. This phenomenon, driven by changes in surface tension, propels the robot forward through a chemical reaction.



A tiny chamber releases carbon dioxide gas, pushing fuel through a channel. The fuel reduces surface tension, causing the <a href="https://www.earth.com/news/autonomous-robots-are-revolutionizing-marine-operations/" target="_blank" rel="noreferrer noopener">robot</a> to advance.



<h2 class="wp-block-heading" id="h-non-toxic-and-biodegradable-design">Non-toxic and biodegradable design</h2>



The robot’s propulsion method employs a safe, biodegradable combination of citric acid and sodium bicarbonate – the same reaction found in school science experiments. 



Propylene glycol, commonly used in skincare products, serves as the fuel. The design ensures minimal environmental impact while allowing the <a href="https://www.earth.com/news/robot-gender-can-influence-your-choices-at-a-restaurant/" target="_blank" rel="noreferrer noopener">robot</a> to move freely across the water surface for several minutes.



“While the development of miniature swimming robots for natural environments has progressed rapidly, these typically rely on plastics, batteries, and other electronics, which pose challenges for mass deployment in sensitive ecosystems,” says <a href="https://www.epfl.ch/en/" target="_blank" rel="noreferrer noopener">EPFL</a> PhD student Shuhang Zhang. 



“In this work, we show how those materials can be replaced by completely biodegradable and edible components.”



<h2 class="wp-block-heading" id="h-fish-food-powered-robot">Fish food-powered robot</h2>



The <a href="https://www.earth.com/news/robots-can-now-learn-from-humans-by-watching-how-to-videos/" target="_blank" rel="noreferrer noopener">robot</a> is about 5 cm (2 inches) long and is made using fish food that has more protein and less fat than regular fish feed. 



This design not only gives the robot a strong, sturdy body but also makes it edible for fish and other aquatic animals once its mission is over. 



The body is created using a freeze-drying process, which removes moisture while keeping the structure lightweight and strong.



This method also prevents the robot from soaking up too much water, helping it stay buoyant and maintain its shape while moving.



<h2 class="wp-block-heading" id="h-environmental-monitoring-potential">Environmental monitoring potential</h2>



The EPFL team envisions deploying the robots in large numbers to collect environmental data, including water pH, temperature, and pollutant levels. 



Equipped with biodegradable sensors, the <a href="https://www.earth.com/news/robots-can-now-learn-like-humans-using-self-awareness/" target="_blank" rel="noreferrer noopener">devices</a> could gather data remotely or through direct collection.



Instead of precise directional control, the researchers created "left turning" and "right turning" variants by adjusting the fuel channel’s design. 



<figure class="wp-block-image aligncenter size-full"><a href="https://www.earth.com/wp-content/uploads/2025/05/edible-robot_environmental-monitoring_fish-food_credit-Alain-Herzog_1m.jpg" target="_blank" rel="noreferrer noopener"><img src="https://www.earth.com/wp-content/uploads/2025/05/edible-robot_environmental-monitoring_fish-food_credit-Alain-Herzog_1s.webp" alt="The edible robot is an alternative to electronic environmental monitoring devices. Credit: Alain Herzog" class="wp-image-1968991"/></a><figcaption class="wp-element-caption">The edible robot is an alternative to electronic environmental monitoring devices. Click image to enlarge. Credit: Alain Herzog</figcaption></figure>



The robots’ pseudo-random movements mimic those of insects, making them suitable for delivering nutrients or medication to fish.



The design also includes a fluidic actuator to house the fuel and reaction chamber, which is activated when water contacts the chamber’s bottom membrane.



<h2 class="wp-block-heading" id="h-advancing-edible-robotics">Advancing edible robotics</h2>



The Laboratory of Intelligent Systems has previously explored edible robotic systems. Past projects include edible soft actuators, fluidic circuits for edible computation, and conductive ink for crop monitoring.



“The replacement of electronic waste with biodegradable materials is the subject of intensive study, but edible materials with targeted nutritional profiles and function have barely been considered, and open up a world of opportunities for human and animal health,” says Dario Floreano, head of the laboratory and coordinator of the <a href="https://www.robofood.org" target="_blank" rel="noreferrer noopener">RoboFood</a> consortium.



The RoboFood project, launched in 2021 with € 3.5 million ($3.8 million USD) in EU funding, continues to explore the potential of these devices in environmental and nutritional applications.



<h2 class="wp-block-heading" id="h-fuel-and-motion-analysis">Fuel and motion analysis</h2>



The researchers selected propylene glycol as the fuel due to its high solubility and low toxicity. 



Lecithin, though a safer surfactant, saturated the water surface quickly, reducing motion duration. The fluidic actuator design maximizes fuel capacity, allowing motion for several minutes before fuel depletion.



The propulsion system achieves a speed range of 0.5 to 3 body lengths per second, aligning with typical prey speeds in aquatic habitats. 



This motion variability aids in distributing nutrients or medication while simulating natural prey behavior, potentially attracting predatory fish.



<h2 class="wp-block-heading" id="h-robots-offer-new-solutions-for-fish-farming">Robots offer new solutions for fish farming</h2>



The edible aquatic robot can function as a mobile environmental sensor or a nutrient delivery system for fish. Its design also allows for the integration of edible sensors, making it suitable for large-scale deployment in aquatic monitoring.



Further research could look into how these robots could be used in fish farming and the pet industry. They could be designed to provide specific nutrients, boost fish health, or even stimulate natural hunting behaviors in pet fish. 



The biodegradable design also makes them suitable for delivering nutrients or medication in delicate ecosystems without causing harm or disrupting aquatic life.



<a href="https://youtu.be/dDmnoexVT5o" target="_blank" rel="noreferrer noopener">Click here to watch a video demonstration...</a>



The study is published in the journal <a href="https://www.nature.com/articles/s41467-025-59559-8" target="_blank" rel="noreferrer noopener">Nature Communications</a>.



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New boat-shaped robot mimics insects and is made of fish food

A new boat-shaped robot mimics the movement of fish and...

What’s the secret to aging well? It might be curiosity. If you're the kind of person who enjoys learning new things, you're already on the right path.



Recent research shows that some types of curiosity not only persist into old age - they can actually grow stronger. This is important because it could help protect your brain.



Older adults who stay curious and actively seek knowledge - especially about things they care about - may lower their risk for <a href="https://www.earth.com/news/alzheimers-may-not-be-a-brain-disease/" target="_blank" rel="noreferrer noopener">Alzheimer’s disease</a>. On the other hand, losing interest in learning and becoming mentally disengaged could be a warning sign of future cognitive issues.



<h2 class="wp-block-heading" id="h-does-curiosity-decline-with-age">Does curiosity decline with age?</h2>



The insights come from a team of psychologists at <a href="https://www.ucla.edu/" target="_blank" rel="noreferrer noopener">UCLA</a>, Western Carolina University, the University of Tübingen, and Kochi University of Technology. Their work challenges earlier studies that claimed curiosity steadily fades as we grow older.



“The psychology literature shows that oftentimes what's known as trait curiosity, or a person’s general level of curiosity, tends to decline with age,” said UCLA psychologist Alan Castel. 



“But we thought that was a little bit strange and went against some of the things we saw in some of the older adult participants in our experiments, who would often be very engaged and interested in <a href="https://www.earth.com/news/secrets-of-learning-how-the-brain-stores-new-information/" target="_blank" rel="noreferrer noopener">learning</a> about memory, specifically, but even other forms of trivia.”



<h2 class="wp-block-heading" id="h-two-kinds-of-curiosity">Two kinds of curiosity</h2>



To better understand how interest in learning changes across the lifespan, the researchers looked at two specific types: trait curiosity and state curiosity.



Trait curiosity is your overall tendency to be curious. It’s more like a <a href="https://www.earth.com/news/personality-traits-linked-to-willingness-to-volunteer-or-donate/" target="_blank" rel="noreferrer noopener">personality trait</a> - something that stays relatively stable over time. Some people are naturally inquisitive about many things, while others are more content to take life as it comes.



State curiosity, by contrast, is the moment-to-moment interest you feel when something grabs your attention. It’s often tied to specific topics, hobbies, or experiences. 



Even people who don’t consider themselves naturally curious might light up when asked a question in their favorite area of interest.



<h2 class="wp-block-heading" id="h-testing-curiosity-across-ages">Testing curiosity across ages</h2>



To test how curiosity works, the team asked over 1,000 participants aged 20 to 84 to complete an online questionnaire. This measured their level of trait curiosity. 



Then came the fun part. Participants were asked to guess answers to obscure trivia questions, like “What was the first country to give women the right to vote?” (It’s New Zealand, if you're wondering).



Before revealing the correct answers, participants rated how interested they were in learning the truth. This rated their state curiosity in the moment.



<h2 class="wp-block-heading" id="h-surprising-findings-about-curiosity">Surprising findings about curiosity</h2>



People with high trait curiosity usually showed high state curiosity, and vice versa. But when the researchers looked at how these two types of curiosity changed with age, an interesting pattern emerged.



Trait curiosity did tend to drop off as people got older. But state curiosity followed a different curve. It declined in early adulthood, hit a low around middle age, and then rose again steadily in older adults.



That might sound familiar. The researchers noted that this pattern mirrors other life trends - like how happiness tends to dip during middle age before climbing back up.



<h2 class="wp-block-heading" id="h-why-middle-age-slows-us-down">Why middle age slows us down</h2>



The drop in curiosity during midlife may not be a mystery. That phase of life is packed with responsibilities: raising children, building careers, paying mortgages. 



People focus their energy on achieving goals, which might leave less time for exploring new ideas. Once those obligations ease - after retirement, for example - people may feel freer to pursue personal interests and hobbies again.



“Our findings fit with some of my work on selectivity theory, which is that as we get older, we don’t want to stop learning, we’re just more selective about what we want to learn,” Castel said. 



“You see this in the context of lifelong learning: A lot of older adults will go back to take classes or pick up hobbies or engage in bird watching. I think it shows that this level of curiosity, if maintained, can really keep us sharp as we age.”



<h2 class="wp-block-heading" id="h-curiosity-keeps-the-brain-engaged">Curiosity keeps the brain engaged</h2>



There’s another reason curiosity matters as we age: It helps with <a href="https://www.earth.com/news/memory-isnt-only-stored-in-our-brains-other-cells-can-remember-too/" target="_blank" rel="noreferrer noopener">memory</a>. "As we get older, maybe we want to be focused on the things that are important, and we forget the things that are less relevant,” Castel said.



“Anecdotally, a lot of older adults I speak to say that it's important to stay curious. That fits with some of the research that shows that people who have early stages of dementia might show disinterest in things that they once enjoyed.”



In other words, curiosity may act like a filter, helping us pay more attention to meaningful information - and ignore what doesn’t matter. That selective focus could be a key strategy for <a href="https://www.earth.com/news/experts-reveal-how-much-sleep-you-need-for-successful-aging/" target="_blank" rel="noreferrer noopener">aging successfully</a>.



So if you’re always chasing answers, digging into facts, or asking questions, keep it up. Staying curious might just be one of the smartest things you can do for your brain.



The full study is published in the journal <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0320600" target="_blank" rel="noreferrer noopener">PLOS One</a>.



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Curiosity might help you stay sharp as you age

What’s the secret to aging well? It might be curiosity....

Small,Puddle,Of,Melted,White,Snow,In,The,Warm,Spring

Ski slopes and winter wonderlands are changing faster than many expected. Researchers have been noticing a shift in global snow patterns for decades, but a recent study points to a worrying surge in snow droughts.



The research was led by Li Zhi from the Xinjiang Institute of Ecology and Geography of the <a href="http://english.egi.cas.cn" target="_blank" rel="noreferrer noopener">Chinese Academy of Sciences</a>.



Decreased snowfall and warmer temperatures contribute to the crisis. The scientists warn that snow <a href="https://www.drought.gov/topics/snow-drought" target="_blank" rel="noreferrer noopener">droughts</a> could hold big implications for drinking water supplies and irrigation.



The research highlights how temperature patterns can change precipitation into <a href="https://www.earth.com/news/megadroughts-are-becoming-more-frequent-and-severe/" target="_blank" rel="noreferrer noopener">rain</a> instead of snow when the air is warmer. 



<h2 class="wp-block-heading" id="h-a-growing-threat-to-water-supplies">A growing threat to water supplies</h2>



A snow drought happens when snowpack is abnormally low for the season. It may be dry due to lower winter precipitation or warm because <a href="https://www.earth.com/news/have-global-temperatures-breached-the-1-5c-threshold/" target="_blank" rel="noreferrer noopener">temperatures</a> prevent snowfall or speed up melting.



Warm and dry conditions can blend, forming dry-warm compound events that create serious trouble for farming, hydroelectric power, and <a href="https://www.earth.com/news/rainfall-is-increasingly-unpredictable-due-to-climate-change/">drinking</a> water supplies. 



Additionally, greenhouse gases raise air temperatures and affect storm tracks across many latitudes. This <a href="https://agupubs.onlinelibrary.wiley.com/doi/pdfdirect/10.1029/2025GL114641" target="_blank" rel="noreferrer noopener">causes</a> more precipitation to fall as rain instead of snow, which lowers snowpack levels and speeds up snowmelt. 



Some <a href="https://www.researchgate.net/publication/323523846_Dramatic_declines_in_snowpack_in_the_western_US" target="_blank" rel="noreferrer noopener">research</a> indicates that global warming is already shifting snow seasons earlier, leaving many mid- and high-latitude regions with shorter, patchier periods of snow.



<h2 class="wp-block-heading" id="h-future-snow-drought-predictions">Future snow drought predictions </h2>



“By 2100, snow drought frequency could triple under the intermediate SSP2-4.5 scenario and quadruple under the high-emission SSP5-8.5 scenario,” said Zhi. 



"Under the SSP5-8.5 scenario, the frequency of the transitions will increase further, with the highest frequency of transition means from dry-warm compound snow drought to warm snow drought."



Other <a href="https://www.researchgate.net/publication/370992524_Evolution_of_global_snow_droughts_characteristics_from_1850_to_2100" target="_blank" rel="noreferrer noopener">work</a> reveals that warm snow droughts could become the dominant form in future decades, outpacing dry cases in many <a href="https://www.earth.com/news/droughts-and-extreme-weather-events-are-escalating/" target="_blank" rel="noreferrer noopener">regions</a>.



Mid-latitude areas, including certain parts of North America and Eurasia, appear to be at greater risk for heavier impacts. Past modeling experiments suggest that some mountainous regions in the <a href="https://www.mines.edu/undergraduate-research/assessing-snow-drought-extent-across-the-western-us-2/" target="_blank" rel="noreferrer noopener">western U.S.</a> might see a snow drought frequency increase from 6.6% to 42% under higher emissions.



These changes may upset local agriculture, since winter snowpack often acts as a natural reservoir that gradually releases water in spring and early summer. Less snow means less water stored for crops and hydroelectric needs.



<h2 class="wp-block-heading" id="h-snow-droughts-threaten-power-and-crops">Snow droughts threaten power and crops</h2>



Snow isn't just about scenery - it’s a critical water source for hydropower. When snowpack shrinks, it can slash electricity generation in mountain-fed regions like the Pacific Northwest and parts of Asia.



Less snow also creates big problems for irrigation. Crops that depend on steady spring runoff, like rice, wheat, and orchard fruits, may suffer from reduced yields or failed harvests in drought-prone years.



Snow droughts don’t always get noticed right away. Unlike rain shortages, the effects of missing snow may take months to show up. 



Water supplies might look normal in winter, only to fall short by late spring or summer when snowmelt usually kicks in. That lag makes it harder for cities and farmers to react in time.



<h2 class="wp-block-heading" id="h-snow-loss-and-infrastructure">Snow loss and infrastructure</h2>



A warming climate is changing how much snow accumulates and when it melts. Cities and farms downstream of major mountain ranges could see water shortages or they must scramble to update water storage infrastructure.



Increased variability also challenges flood management. If more precipitation arrives as rain, rivers might swell quickly in winter months, prompting new <a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL114775?af=R" target="_blank" rel="noreferrer noopener">concerns</a> over dam operations and reservoir capacity. 



High risk regions, along with populated coastal cities may need infrastructure management. Heavy precipitation is no concern when a stormwater drainage system is put in place. 



<h2 class="wp-block-heading" id="h-a-warming-climate-looking-ahead">A warming climate: Looking ahead</h2>



Experts stress the importance of refining climate models to better understand the timing and intensity of these droughts. Accurate forecasting can help decision-makers plan efficient strategies for storing water and preventing supply shocks.



Many research <a href="https://agupubs.onlinelibrary.wiley.com/toc/19447973/2025/61/1" target="_blank" rel="noreferrer noopener">groups</a> suggest a broad approach that includes water conservation, improved snowpack monitoring, and flexible infrastructure. 



These measures may help communities adapt to the growing possibility of more frequent snow droughts, including warm and dry-warm compound <a href="https://www.earth.com/news/extreme-rainfall-will-wreak-havoc-on-mountain-ranges-as-warming-climate-turns-snow-to-rain/" target="_blank" rel="noreferrer noopener">events</a>.



The study is published in the journal <a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL114641" target="_blank" rel="noreferrer noopener">Geophysical Research Letters</a>.



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Snow droughts could quadruple by 2100, harming water supplies

Ski slopes and winter wonderlands are changing faster than many...

Climate scientists say rising temperatures can reduce the availability and nutritional quality of dairy grass. Producers then turn to alternative feeds, including corn-based silage, to maintain production.



In a recent investigation, Dr. Matthieu Bouchon, an expert at <a href="https://www.inrae.fr/en" target="_blank" rel="noreferrer noopener">INRAE</a> - National Research Institute for Agriculture, Food and Environment, studied how these changes in feeding practices influence both <a href="https://www.earth.com/news/extreme-heat-makes-dairy-cows-produce-less-milk/" target="_blank" rel="noreferrer noopener">milk</a> yield and the resulting cheese.



Dr. Bouchon was part of a team that analyzed nutritional profiles and taste notes across different feeding setups.



<h2 class="wp-block-heading" id="h-how-climate-change-affects-cow-feed">How climate change affects cow feed</h2>



Drought is bad news for many pasture-reliant farms. When rains fade, grass doesn’t grow as usual, so farmers scramble to bolster cow diets with stored feeds or more concentrated rations.



Climate impacts force them to get inventive. That often means adding more corn silage to keep <a href="https://www.earth.com/news/grazing-animals-have-an-unexpected-role-in-climate-change/" target="_blank" rel="noreferrer noopener">cows</a> in good shape, but it can lead to a drop in grass-based components that affect milk’s natural composition.



<h2 class="wp-block-heading" id="h-grass-intake-and-dairy-nutrients">Grass intake and dairy nutrients</h2>



Farmers are keen on maximizing nutrients in milk. The study team discovered a strong tie between higher grass intake and better fatty acid content.



“The results showed that the more grass the cows ate, the richer the <a href="https://www.earth.com/news/ai-paves-the-way-for-climate-conscious-farming/" target="_blank" rel="noreferrer noopener">milk</a> and cheese were in omega-3 fatty acids, which are beneficial to human health,” stated Dr. Bouchon.



Switching to corn-based rations can still yield a decent amount of milk. Yet the subtle nutritional goodies in <a href="https://pubmed.ncbi.nlm.nih.gov/16960079/" target="_blank" rel="noreferrer noopener">grass</a> may slip away if it becomes a minor part of the diet.



<h2 class="wp-block-heading" id="h-cow-feed-changes-cheese">Cow feed changes cheese </h2>



Consumers often favor the special shade and softness of artisanal cheese. Grass helps deliver that yellowish tinge and a smoother, melt-in-the-mouth feel.



“Cows fed on grazed grass produced smoother, yellower, more aromatic cheeses, while cows fed little to no grass produce whiter, firmer cheeses with milder flavors,” said Dr. Bouchon.&nbsp;



<h2 class="wp-block-heading" id="h-distinct-flavors-of-cheese">Distinct flavors of cheese</h2>



Minimizing fresh grass in a herd’s diet can make the final dairy product less appealing. This outcome matters not just for foodies but also for farmers marketing distinctive <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC5867552/" target="_blank" rel="noreferrer noopener">cheeses</a>.



Many shoppers pick grass-fed labels expecting distinct flavors. When producers reduce fresh grass in favor of silage or hay, the cheese may lose that familiar aroma.



A cheese that once tasted bold or slightly grassy can end up with a blander profile. Texture often changes too, as the fats and proteins shift under modified feeding patterns.



<h2 class="wp-block-heading" id="h-practical-worries-for-farmers">Practical worries for farmers</h2>



Dairy farms run on slim profit margins. Any slip in milk yield or cheese appeal can hurt business, but ignoring drought conditions isn’t an option either.



Balancing feed mixes becomes a juggling act. More grass means tastier cheese, but a parched field can’t always supply what's needed, so producers face a hard call.



<h2 class="wp-block-heading" id="h-feed-changes-affect-cow-digestion">Feed changes affect cow digestion</h2>



Each feed ingredient, whether hay or silage, can affect <a href="https://www.nature.com/articles/s41392-022-00974-4" target="_blank" rel="noreferrer noopener">microbiota</a> inside a cow’s rumen. This intricate environment helps break down cellulose and produce nutrients for the cow.



If farmers switch abruptly to corn-based rations, the cow’s digestive system may take time to adjust. Subtle changes in the rumen can ripple through to the milk in surprising ways.



<h2 class="wp-block-heading" id="h-implications-for-cheese-lovers">Implications for cheese lovers</h2>



Nobody wants a rubbery or flavorless cheese on their plate. Folks who appreciate artisanal dairy should keep an eye on how climate issues and diet adjustments shape their favorite products.



While these shifts might not stand out in mass-produced cheese, small-scale operations often rely on the tastes derived from high-grass diets. Flavor can be a big selling point.



<h2 class="wp-block-heading" id="h-feeding-strategies-influence-dairy-yield-nbsp">Feeding strategies influence dairy yield&nbsp;</h2>



Herd nutrition is more complicated than many realize. Different cows have varying needs depending on genetics, lactation stage, and climate conditions.



Producers factor in how each feed ingredient influences both milk quantity and milk quality. These trade-offs can make or break the end product’s sensory profile.



<h2 class="wp-block-heading" id="h-adapting-cow-feed-to-drought-conditions">Adapting cow feed to drought conditions</h2>



Some farmers are testing new grass varieties said to handle hot spells better. Others look at advanced grazing strategies or water conservation tactics to maintain fields during dry months.



At the same time, research teams share data to guide farmers on how best to tweak feed ingredients. The aim is to protect both milk output and that prized cheese taste.



<h2 class="wp-block-heading" id="h-preserving-dairy-grass">Preserving dairy grass </h2>



Shoppers see words like omega-3 on labels but don’t always know how production methods affect those nutrients. Many prefer products that combine solid nutrition with a pleasing taste, color, and aroma.



Farmers who manage to preserve grass can maintain that balance. Even modest amounts of fresh forage appear helpful to keep cheese palatable and nutritionally robust.



<h2 class="wp-block-heading" id="h-beyond-the-pasture">Beyond the pasture</h2>



Climate concerns won’t vanish overnight. Researchers are tracking how these feeding adjustments ripple across entire food chains, from soil microbes to final cheese properties.



While not every farm can rely on grass alone, preserving its presence seems vital for those aiming for standout cheese. This is especially true for dairy regions with a cultural heritage tied to lush fields.



<h2 class="wp-block-heading" id="h-dairy-production-amid-climate-change">Dairy production amid climate change</h2>



With each passing year, dryness threatens more farmland. Creative solutions and careful ration decisions may hold the key to maintaining the hallmark traits that grass-based cheeses are known for.



Ongoing research may soon offer farmers new strategies to keep cows healthy while reducing their environmental impact. Whether large or small, dairy producers must continue to adapt to meet these evolving challenges.



The study is published in the <a href="https://linkinghub.elsevier.com/retrieve/pii/S002203022500092X" target="_blank" rel="noreferrer noopener">Journal of Dairy Science</a>.



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Popular types of cheese are beginning to taste different due to what cows are eating

Climate scientists say rising temperatures can reduce the availability and...

Illegal wildlife trade in North Korea is a shadowy yet thriving enterprise. Beneath the state’s stringent regulatory framework, a dark undercurrent flows - one where endangered species become mere commodities. 



This silent crisis has been investigated by experts at University College London (<a href="https://www.ucl.ac.uk/" target="_blank" rel="noreferrer noopener">UCL</a>). The research reveals the stark reality of a nation where economic desperation and government complicity intertwine to ravage <a href="https://www.earth.com/news/world-wildlife-day-2025-a-global-call-to-protect-nature/" target="_blank" rel="noreferrer noopener">biodiversity</a>.



The study is the first in-depth examination of North Korea’s wildlife trade. Researchers interviewed defectors, including former hunters, middlemen, and buyers, exposing a network of illegal trade that stretches from the country’s dense forests to the bustling markets of China. 



The findings are chilling: endangered species are being hunted, skinned, and sold while the state profits from their suffering.



<h2 class="wp-block-heading" id="h-the-rise-of-black-markets">The rise of black markets</h2>



The collapse of North Korea’s economy in the 1990s reshaped the country’s social and economic fabric. A once-centralized distribution system crumbled, pushing citizens into the shadows of the black market. 



Food shortages forced families to fend for themselves, and in the absence of state support, wildlife became both a lifeline and a lucrative trade.



Hunting, a desperate act of survival, turned into a thriving underground economy. Deer, wild boar, and red fox became prime targets, not just for their meat but for their skins and bones. These products were not only consumed locally but also sold to middlemen, who then smuggled them across the border to China.



Dr. Joshua Elves-Powell, the study’s lead author, connects economic hardship to the surge in <a href="https://www.earth.com/news/world-civet-day-2025-reveals-the-dark-side-of-a-luxury-coffee/" target="_blank" rel="noreferrer noopener">wildlife</a> exploitation. 



“The widespread harvesting of North Korea’s wildlife, driven by the economic limitations of the North Korean state and the shortages of food, medicine and basic goods experienced by many of its citizens, is an important threat to the biodiversity of North Korea and the wider region,” he said.



<h2 class="wp-block-heading" id="h-china-s-role-in-the-wildlife-trade">China’s role in the wildlife trade</h2>



Wildlife trade in North Korea doesn’t end within its borders. China has become a voracious consumer of North Korean <a href="https://www.earth.com/news/earth-day-honors-success-in-clean-energy-and-wildlife-recovery/" target="_blank" rel="noreferrer noopener">wildlife</a> products. 



The study reveals that middlemen capitalize on economic desperation, offering substantial sums for tiger bones, bear bile, and deer antlers.



One former hunter, now a defector, described how deer antlers from large stags could fetch a price that would sustain a family for months. Some antlers, smuggled into China, were ground into medicinal powders and sold as luxury health supplements.



The study also exposes the intricate network of middlemen who facilitate this trade. These brokers navigate a labyrinth of border patrols and bribes, disguising wildlife products as everyday goods. 



Despite international sanctions, the illicit flow of animal products continues, driven by insatiable demand and unchecked corruption.



<h2 class="wp-block-heading" id="h-state-sanctioned-wildlife-exploitation">State-sanctioned wildlife exploitation</h2>



North Korea’s wildlife trade laws ostensibly protect endangered species. Yet the state itself is a key player in the trade of protected <a href="https://www.earth.com/news/un-report-disturbing-details-about-the-state-of-earths-wildlife/" target="_blank" rel="noreferrer noopener">animals</a>. 



The study uncovers how government-run farms raise otters, pheasants, and Asiatic black bears, ostensibly for domestic consumption but ultimately to fuel the black market.



Bear bile farming, a practice condemned globally for its cruelty, continues unabated. North Korea began farming bears in the 1970s, a practice that later spread to China and South Korea. Despite mounting international pressure, the country persists, extracting bile to supply a market that prizes its medicinal properties.



One defector recounted how households were forced to submit <a href="https://www.earth.com/news/pet-dogs-severely-harm-wildlife-even-when-leashed/" target="_blank" rel="noreferrer noopener">animal</a> skins to meet state quotas. Failure to comply could result in severe repercussions. Even children were tasked with raising rabbits, their skins later harvested to produce winter clothing for the military.



<h2 class="wp-block-heading" id="h-traditional-medicine-drives-wildlife-exploitation">Traditional medicine drives wildlife exploitation</h2>



Traditional Korean medicine (TKM) reveres wildlife products for their supposed healing properties. In North Korea, the use of deer antlers, bear bile, and badger oil extends beyond folklore. It is an industry that thrives amid scarcity and desperation.



Participants in the study reported that deer antlers, once reserved for high-ranking officials, are now sold to the highest bidder. Smuggled antlers are processed into powders and pills, marketed as potent health supplements in China.



The trade in badger oil, used to treat ailments ranging from skin conditions to joint pain, is another thriving enterprise. Asian badgers, once common, have become targets of relentless hunting. 



One participant described how wildlife like badgers were captured, killed, and traded for their oil, the resulting product sold as a cure-all in local markets.



<h2 class="wp-block-heading" id="h-north-korea-s-vanishing-wildlife">North Korea’s vanishing wildlife</h2>



In North Korea, the sable is a creature of myth and memory. Once abundant in the country’s forests, this small carnivore is now all but extinct. 



The study details how sable skins, once a common sight in markets, have become so rare that traders refer to them as “ghost pelts.” The report paints a grim picture of a species driven to the brink by relentless hunting.



Sables, valued for their luxurious fur, were trapped, skinned, and smuggled into China, where their pelts fetched exorbitant prices. The trade was so lucrative that some hunters risked their lives crossing frozen rivers to transport their illegal haul.



Amur tigers and leopards face a similar fate. Their skins, bones, and claws are traded as status symbols, used in traditional medicine or displayed as trophies. One defector recounted how a single tiger pelt could fetch a price that would feed a family for a year.



<h2 class="wp-block-heading" id="h-the-dark-side-of-wildlife-breeding">The dark side of wildlife breeding</h2>



Wildlife farms in North Korea are a paradox — legal yet inherently cruel. Bears are caged for bile extraction, otters are bred for their pelts, and deer are farmed for their antlers.



The study highlights how these state-run farms operate under a thin veneer of legality. While their stated purpose is to provide a sustainable source of animal products, in reality, they supply a black market that thrives on animal suffering.



Coypu, a non-native species introduced for its fur, now roams the countryside, an invasive consequence of escaped farm stock. Meanwhile, rabbits, raised under Kim Il Sung’s directives, are now a staple in state-run farms.



One defector described how children in schools were tasked with raising rabbits, their skins later collected by government officials. The meat, considered a “gift” from the state, was a rare protein source in a country where food is perpetually scarce.



<h2 class="wp-block-heading" id="h-wildlife-trade-threatens-biodiversity">Wildlife trade threatens biodiversity</h2>



The consequences of North Korea’s wildlife trade extend beyond its borders. Amur tigers, rebounding in parts of China, risk being poached if they cross into North Korea. 



Deer populations, already decimated, may soon disappear entirely. Dr. Elves-Powell emphasized the need for regional cooperation.



“China can counter this threat by continuing to reduce domestic demand for illegal wildlife and putting diplomatic pressure on its economically dependent neighbour to disengage from state-sanctioned illegal wildlife trade,” he stated.



China’s role is pivotal. Despite being a signatory to the Convention on International Trade in Endangered Species (CITES), the country remains a major market for North Korean wildlife products. 



Strengthening border controls and enforcing stricter penalties for smugglers could significantly curb the flow of illicit goods.



<h2 class="wp-block-heading" id="h-wildlife-trade-and-protection-laws">Wildlife trade and protection laws</h2>



The study concludes with urgent recommendations for North Korea and its neighbors. First, the researchers call for immediate enforcement of existing wildlife protection laws, targeting both state-run farms and private traders.



Second, they advocate for a total ban on bear bile farming, a practice that has been condemned by conservationists for decades. North Korea’s continued participation in this trade not only endangers its bear populations but also tarnishes its international reputation.



Third, the study recommends that China strengthen its efforts to curb demand for illegal wildlife products. Without a crackdown on black market networks, North Korea’s endangered species will continue to vanish, one animal at a time.



Finally, the report emphasizes the need for international pressure. Diplomatic efforts, coupled with targeted sanctions, could compel North Korea to curb its exploitation of wildlife. Yet, as long as economic desperation persists, the allure of quick profits from animal products may prove too strong to resist.



In a land where economic hardship, cultural tradition, and state control converge, North Korea’s wildlife is running out of time. The silent extinction continues, unnoticed, unchecked, and utterly devastating.



The study is published in the journal <a href="https://www.sciencedirect.com/science/article/pii/S0006320725001399" target="_blank" rel="noreferrer noopener">Biological Conservation</a>.



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North Korea's wildlife trade targets endangered animals

Illegal wildlife trade in North Korea is a shadowy yet...

A virus doesn’t need wings to travel. It just needs a ride - and sometimes, that ride is a cage packed into the back of a truck. That’s what scientists are now suggesting about the ancestor of SARS-CoV-2, the virus that caused the COVID-19 pandemic.



New research suggests that the ancestor of this virus likely originated in Western China or Northern Laos. But it showed up nearly 2,700 kilometers away in Central China just a few years later - too far for its natural host, the horseshoe bat, to cover on its own.



<h2 class="wp-block-heading" id="h-hidden-journey-of-the-covid-virus">Hidden journey of the COVID virus</h2>



The study comes from scientists at the <a href="https://medschool.ucsd.edu/" target="_blank" rel="noreferrer noopener">University of California San Diego School of Medicine</a>, working with collaborators from other institutions. 



The team concluded that the virus was likely transported by other animals involved in the <a href="https://www.earth.com/news/some-sunscreens-lose-effectiveness-and-become-harmful/" target="_blank" rel="noreferrer noopener">wildlife trade</a> - similar to what happened during the SARS outbreak in 2002.



Horseshoe bats are known carriers of sarbecoviruses, the virus family that includes both SARS-CoV-1 and SARS-CoV-2. 



These viruses don’t make bats sick, but they can jump to humans through a process called “zoonotic spillover.” It’s still debated how that spillover happens and which animals might be involved beyond bats.



<h2 class="wp-block-heading" id="h-complex-evolution-of-viruses">Complex evolution of viruses</h2>



To trace the virus's path, the researchers looked at viral genomes shared online and mapped out how these viruses evolved over time. 



That task wasn’t easy. These viruses tend to recombine - shuffling their genetic material like a deck of cards when two viruses infect the same bat.



“When two different viruses infect the same bat, sometimes what comes out of that bat is an amalgam of different pieces of both viruses,” said Dr. Joel Wertheim from UC San Diego School of Medicine. 



“Recombination complicates our understanding of the evolution of these viruses because it results in different parts of the genome having different evolutionary histories.”



<h2 class="wp-block-heading" id="h-bats-carrying-the-covid-virus">Bats carrying the COVID virus</h2>



To work around the recombination issue, the scientists identified parts of the virus genomes that had not recombined. These stable sections allowed them to paint a clearer picture of the virus’s evolutionary path.



The analysis showed that <a href="https://www.earth.com/news/vaccine-resistant-coronavirus-discovered-in-russian-bats/" target="_blank" rel="noreferrer noopener">sarbecoviruses</a>, including those related to SARS-CoV-1 and SARS-CoV-2, have been circulating in Western China and Southeast Asia for a long time. As the bats moved across the landscape, the viruses moved with them - at roughly the same pace.



“Horseshoe bats have an estimated foraging area of around 2-3 kilometers and a dispersal capacity similar to the diffusion velocity we estimated for the sarbecoviruses related to SARS-CoV-2,” said Dr. Simon Dellicour from Université Libre de Bruxelles and KU Leuven.



But that wasn’t the case for the specific ancestors of SARS-CoV-1 and SARS-CoV-2. These viruses showed up far from their point of origin, and they did it fast - less than 10 years before the outbreaks.



<h2 class="wp-block-heading" id="h-looking-to-the-wildlife-trade">Looking to the wildlife trade </h2>



Dr. Jonathan E. Pekar is a postdoctoral researcher at the University of Edinburgh and a graduate of the UC San Diego School of Medicine.



"We show that the original SARS-CoV-1 was circulating in Western China - just one to two years before the emergence of SARS in Guangdong Province, South Central China, and <a href="https://www.earth.com/news/study-reveals-surprising-mutations-in-sars-cov-2-virus/" target="_blank" rel="noreferrer noopener">SARS-CoV-2</a> in Western China or Northern Laos - just five to seven years before the emergence of COVID-19 in Wuhan,” said Dr. Pekar.



That timeline makes it highly unlikely that bats alone moved the virus such a long distance. More likely, the viruses hitched a ride through the wildlife trade - moving with infected animals sold for food or fur.



<h2 class="wp-block-heading" id="h-following-the-trail-of-infected-animals">Following the trail of infected animals</h2>



This theory isn’t new. Previous research suggested that palm civets or <a href="https://www.earth.com/news/raccoon-dogs-may-be-a-growing-threat-to-waterbirds-in-finland/" target="_blank" rel="noreferrer noopener">raccoon dogs</a> helped carry SARS-CoV-1 from Yunnan Province to Guangdong Province. The latest study strengthens the idea that SARS-CoV-2 traveled in the same way.



“The viruses most closely related to the original SARS coronavirus were found in palm civets and raccoon dogs in southern China, hundreds of miles from the bat populations that were their original source,” said Dr. Michael Worobey from The University of Arizona. 



“For more than two decades the scientific community has concluded that the live-wildlife trade was how those hundreds of miles were covered. We’re seeing exactly the same pattern with SARS-CoV-2.”



The findings challenge claims that SARS-CoV-2 might have come from a lab leak.



“At the outset of the <a href="https://www.earth.com/news/covid-19-virus-lingers-body-two-years-after-infection/" target="_blank" rel="noreferrer noopener">COVID-19</a> pandemic, there was a concern that the distance between Wuhan and the bat virus reservoir was too extreme for a zoonotic origin,” said Dr. Wertheim. “This paper shows that it isn't unusual and is, in fact, extremely similar to the emergence of SARS-CoV-1 in 2002.”



<h2 class="wp-block-heading" id="h-understanding-virus-movement">Understanding virus movement</h2>



The frequency of zoonotic spillover events is rising. Wildlife trade, urban growth, and habitat loss are bringing humans and animals into closer contact than ever before. 



Scientists believe that keeping tabs on wild bat populations and tracking the viruses they carry could help us predict where the next pandemic might start.



Understanding how viruses move through the world - whether by wing or by wagon - could be a key step in keeping us safer in the years to come.



The full study was published in the journal <a href="https://linkinghub.elsevier.com/retrieve/pii/S0092867425003538" target="_blank" rel="noreferrer noopener">Cell</a>.



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COVID virus spread too quickly for bats alone to be responsible

A virus doesn’t need wings to travel. It just needs...

McDermitt Caldera in Oregon is attracting attention for what could be one of the largest lithium deposits ever identified in the United States. Many view it as a potential boost for domestic battery production, while local communities voice concern over the impact on wildlife and cultural sites.



The excitement stems from <a href="https://www.nature.com/articles/d41586-025-01273-y" target="_blank" rel="noreferrer noopener">estimates</a> that value the deposit at about $1.5 trillion. Some geologists say these ancient volcanic sediments could contain between 20 and 40 million metric tons of lithium.&nbsp;



<h2 class="wp-block-heading" id="h-lithium-deposit-exposes-priorities">Lithium deposit exposes priorities</h2>



“This feature is 16 million years old, and we’re making decisions in a matter of years,” said <a href="https://www.researchgate.net/profile/Sammy-Castonguay" target="_blank" rel="noreferrer noopener">Sammy Castonguay</a>, a geologist at Treasure Valley Community College. 



Castonguay’s statement has stirred local debate over how the development might reshape the high desert.



Industry advocates see a path to addressing the ballooning need for electric vehicle batteries. 



Neighbors around the caldera and the <a href="https://mcdermittlithium.com/" target="_blank" rel="noreferrer noopener">McDermitt deposit</a> worry that large-scale extraction could damage an ecosystem that supports pronghorn antelope, sage-grouse, and other sensitive species.



<h2 class="wp-block-heading" id="h-the-environmental-dilemma">The environmental dilemma</h2>



A <a href="https://eplanning.blm.gov/public_projects/2025844/200559254/20083724/250089906/HiTechPlanOfOperations_Presentation.pdf" target="_blank" rel="noreferrer noopener">proposal</a> from HiTech Minerals Inc. seeks to add roads and hundreds of wells to test for lithium in Malheur County. 



The Bureau of Land Management (<a href="https://www.blm.gov/" target="_blank" rel="noreferrer noopener">BLM</a>) once offered a brief window for public comment, which drew criticism from groups who say that’s not enough time to evaluate lasting changes.



The Oregon Chapter of the Sierra Club indicates they support cleaner energy but believe drilling must not come at the expense of fragile habitats.



Some see parallels to disputes in Nevada, where communities have fought lithium ventures they say <a href="https://www.earth.com/news/invention-turns-toxic-e-waste-into-22-carat-gold-nuggets-instead-of-trash/" target="_blank" rel="noreferrer noopener">threaten water sources</a>. 



Malheur County is among Oregon’s poorest areas, and certain residents hope new jobs might brighten its economic outlook. “We need to do this the Oregon way - with full accountability and shared benefits,” said <a href="https://repgregsmith.com/about/" target="_blank" rel="noreferrer noopener">Greg Smith</a>, director of economic development in Malheur County.



<h2 class="wp-block-heading" id="h-why-lithium-deposits-are-so-valuable">Why lithium deposits are so valuable</h2>



Cleaner transportation and renewable energy storage have skyrocketed demand for lithium. Its light weight and excellent electrochemical properties make it key in modern <a href="https://www.earth.com/news/electric-car-batteries-may-soon-be-made-of-rock/">battery</a> production. 



Global interest in ramping up supply has fueled both exploration and debate. Many want a homegrown source to cut reliance on overseas materials, but critics stress that extracting metals can have lasting ecological implications.



Mining typically means large excavations, <a href="https://www.earth.com/news/promethium-rare-earth-element-elusive-properties-finally-decoded-after-80-year/" target="_blank" rel="noreferrer noopener">chemical processing</a>, and water usage. Press releases and early studies mention concerns about dust, vehicle exhaust, and possible leakage of industrial byproducts.



Meanwhile, some economists argue that lithium’s high market price presents an opportunity to jump-start local development. Balancing those perspectives can be tough for rural communities.



<h2 class="wp-block-heading" id="h-unique-volcanic-origins">Unique volcanic origins</h2>



Past eruptions formed the caldera and left mineral-rich clays across a wide basin. The environment eventually became a semi-arid habitat that’s important for migrating wildlife. 



One <a href="https://www.sciencedirect.com/science/article/pii/0360544278900312" target="_blank" rel="noreferrer noopener">study</a> found high levels of lithium in these sediments, suggesting an unusually concentrated resource. Analysts say that if extraction methods prove efficient, the U.S. could rank among the top global suppliers of this metal.



The caldera lies near the Oregon-Nevada border. Projects on both sides have followed a similar pattern: geological surveys, land modification, and pilot drilling. 



Some scientists emphasize that claystone deposits differ from salt brine operations found in South America. 



Processing claystone may require more complex techniques, including acid leaching, which can raise questions about waste disposal and water safety.



<h2 class="wp-block-heading" id="h-concerns-for-wildlife-and-culture">Concerns for wildlife and culture</h2>



Habitat for <a href="https://www.earth.com/news/hunting-regulations-have-helped-safeguard-the-sage-grouse/" target="_blank" rel="noreferrer noopener">sage-grouse</a> is already shrinking, and many local groups fear the consequences of losing more desert terrain.



The region also holds deep cultural value for several Indigenous tribes. 



Tribal leaders in nearby areas have contested past proposals by pointing to sites sacred for ceremonies and important for traditional ways of life. As the push for lithium grows, local voices want to remain central in discussions about land use.



Opponents argue that insufficient environmental reviews could harm unique species such as <a href="https://westernnativetrout.org/what-are-western-native-trout-and-char/lahontan-cutthroat-trout/" target="_blank" rel="noreferrer noopener">Lahontan cutthroat trout</a>. 



Past drilling in high desert regions showed that groundwater tables can be affected by large-scale operations. Proponents, though, say modern techniques and strong oversight may mitigate many risks.



<h2 class="wp-block-heading" id="h-mixed-signals-on-lithium-s-future">Mixed signals on lithium’s future</h2>



Experts note that the caldera deposit could give the U.S. a competitive advantage in <a href="https://www.earth.com/news/new-electric-car-battery-charges-in-just-4-5-minutes/">battery</a> supply. At the same time, non-governmental organizations believe short-term profit shouldn’t overshadow the ecological and historical wealth found in Oregon’s high desert. 



Mining companies emphasize their intent to follow federal standards and incorporate feedback from local communities. Yet friction persists over whether that outreach is genuine.



<a href="https://www.sierraclub.org/oregon" target="_blank" rel="noreferrer noopener">Sierra Club Oregon</a> suggests it’s possible to develop lithium alternatives or find better ways to source the metal. Advocates of the project maintain that these clays represent a crucial resource in an era when every major carmaker is transitioning to electric models.



Disagreements arise from how fast these projects roll out, and whether rural populations have a real say in shaping them.



<h2 class="wp-block-heading" id="h-what-s-next-for-this-lithium-deposit">What's next for this lithium deposit?</h2>



Local debates often center on water needs for drilling and processing. Some scientists point out that advanced recycling and new battery chemistries might alleviate the environmental strain. 



Others say U.S. projects reduce dependence on foreign supply chains, which could lower geopolitical risks. 



The trade-off is that most lithium deposits, wherever they are, carry <a href="https://www.earth.com/news/huge-lithium-deposit-from-volanic-ash-found-in-pennsylvania/" target="_blank" rel="noreferrer noopener">certain environmental implications</a>. A few watchers say this moment holds a chance to reevaluate how to conduct resource extraction.



As these Oregon proposals move ahead, investors are confident that demand for lithium won’t dip anytime soon, but local communities want to ensure they aren’t left with the mess once the initial excitement fades.



The study is published in <a href="https://www.mdpi.com/2075-163X/10/1/68" target="_blank" rel="noreferrer noopener">Minerals</a>.



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Volcanic white gold: A lithium deposit valued at $1.5 trillion has been discovered in the U.S.

McDermitt Caldera in Oregon is attracting attention for what could...

Scientists are transforming chocolate into a functional food by infusing it with probiotics and prebiotics, aiming to create a treat that satisfies cravings while supporting gut health. 



The challenge lies in maintaining chocolate's beloved texture and flavor while adding health benefits.



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https://youtu.be/Ug657J67iEo?si=w96YjGMsg939LD_3
</div></figure>



Probiotics - beneficial microbes that balance gut bacteria and aid digestion - are typically fragile and can be destroyed by stomach acid or processing. 



Prebiotics act as food for these microbes, helping them thrive. Together, they form "synbiotics," a powerful health combination.



Researchers Smriti Gaur and Shubhi Singh from India's Jaypee Institute of Information Technology took an innovative approach, using natural prebiotics like corn and honey instead of complex processing methods. 



They created five chocolate varieties: a control and four synbiotic versions containing different combinations of prebiotics, probiotics (Lactobacillus strains), and flavor enhancers (cinnamon or orange).



Laboratory simulations of human digestion showed the probiotics remained viable for over five hours, suggesting they could survive long enough to benefit gut health.



Taste tests were positive, with researchers particularly enjoying the orange-flavored variety, describing it as having "vibrant citrus notes" complementing the "rich cocoa" with a "luxurious" texture.



This research represents just the beginning. With further refinement of strains, textures, and flavors, chocolate could evolve beyond mere indulgence to become a functional food that nourishes while it delights.



The study is published in the journal <a href="https://pubs.acs.org/doi/10.1021/acsfoodscitech.4c00741" target="_blank" rel="noreferrer noopener">ACS Food Science &amp; Technology</a>.

Is chocolate the next nutritional powerhouse?

Scientists are transforming chocolate into a functional food by infusing...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Nushagak Bay, a large estuary in southwest Alaska. Nushagak runs mainly north to south and exits in Bristol Bay, a large body of water in the Bering Sea.



"The bay is primarily fed by the Nushagak River, which begins in the Alaska Range and flows southwest approximately 450 km. The bay is also fed by several additional rivers including the Wood, Igushik, Snake and Weary rivers," says ESA.



"The dark colors of the Nushagak River are most likely due to tannins or lignins (chemical substances found in plants). Tannins and lignins from roots, leaves, seeds, bark and soil can leach into the water and give it a brown or even black colour. The sediments then flow southwards where it is mixed with the bluer waters of the bay."



Video/ Image Credit: ESA



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Nushagak Bay in southwest Alaska

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Today's Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> (ACS) reveals that proteins on flu viruses are actually flexible, tilting and waving in a “breath-like” motion. According to the experts, these proteins could be used to better defend against the flu.



"The main antigenic targets of influenza virus are two surface glycoproteins, hemagglutinin (HA) and neuraminidase (NA). Whereas the structural and dynamical properties of both glycoproteins have been studied previously, the understanding of their plasticity in the whole-virion context is fragmented," wrote the researchers.



To investigate, the team conducted detailed simulations of the influenza A H1N1 virion, or the swine flu. The experts concluded that the visualizations show many new vulnerable states of flu viruses, which could improve future vaccines and antiviral drugs.



Video/ Image Credit: American Chemical Society&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Flu viruses are more flexible than expected

[sendtonews key="G9bUoxcjr4-2511624-12187" type="single"] Today's Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Lake Trasimeno, which is located west of Perugia in central Italy. It is the fourth largest lake in the country. While Trasimeno’s water level varies, it has a maximum depth of approximately six meters.&nbsp;



"In this Copernicus Sentinel-2 image, captured on 6 August 2022, the lake’s emerald green colour is likely due to the presence of phytoplankton. Streaks in the water, particularly visible in the west, indicate the presence of soil and sediments which have been stirred up by winds. Dark colored waters in the southern part of the lake indicate a presence of submerged and floating macrophytes (aquatic plants) as well as algae," says ESA.



"Surrounded by hills on three sides, Trasimeno is subject to heavy storms created by winds, especially from the north and west. There are three islets in the lake: Maggiore, Minore and Polvese (the largest). The lake’s shores are sparsely inhabited with only two popular villages: Castiglione del Lago and Passignano sul Trasimeno."



"Italy is experiencing its worst drought in 70 years which has affected drinking water supplies, hydroelectric power and agricultural production. High temperatures, hot winds and lack of rainfall are the main causes of drought in the Umbrian region which saw Lake Trasimeno’s drop 1.3 m, reaching the limit of the hydrometric zero in July 2022."



Video/Image Credit: ESA&nbsp;



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Lake Trasimeno in Central Italy

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Today's Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> describes a new self-powered nanosensor that can instantly detect mercury contamination with the tap of a finger.&nbsp;



The oxidized form of mercury can be harmful when it is ingested through contaminated water or food. This makes it necessary for experts to develop sensors that can quickly and accurately detect the presence of mercury.&nbsp;



Zong-Hong Lin and colleagues have now created a triboelectric nanosensor (TENS) that can detect mercury by simply by touching a sample. According to the researchers, their TENS could serve as the basis for similar devices to safely and remotely monitor other pollutants.



Video Credit: American Chemical Society&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Detecting mercury contamination with the tap of a finger

[sendtonews key="LvS8v8bp9z-2564889-12187" type="single"] Today's Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Kainji Lake, a reservoir on the Niger River.



In 1968, Kainji Lake was created by the construction of the Kainji Dam. The Niger River, the third longest in Africa, enters the lake in the north.&nbsp;



According to <a href="https://www.earth.com/news/rivers-in-the-american-west-are-a-lifesaving-resource-for-birds/">ESA</a>, the creation of the lake submerged Foge Island and the town of Bussa and permanently flooded other riverine settlements, leaving around 50,000 people displaced.&nbsp;



Large parts of Foge Island are temporarily exposed during low water tides, and the land is often used by migrating fishermen. Kainji Dam is a dam across the Niger River in Niger State of Central Nigeria. 



Wild mammals occur at relatively low densities due to illegal hunting. Lake Kainji has suffered a dramatic decline as a fishery due to the high numbers of artisanal and subsistence fisherfolk using the lake. It has been suggested that a period of closure, together with controlled fishing rights may help improve fish stocks.



Kainji Lake National Park is the oldest of its kind in Nigeria. The park contains three distinct areas: a part of the Kainji Lake, the Borgu Game Reserve to the west of the lake, and the Zugurma Game Reserve to the southeast. The park is home to around 65 mammal species, 350 bird species, and 30 species of reptiles and amphibians. 



Video/ Image Credit: European Space Agency&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Kainji Lake in north central Nigeria

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