<p>Today's <strong>Image of the Day</strong> from <a href="https://earthobservatory.nasa.gov/" target="_blank" rel="noreferrer noopener">NASA Earth Observatory</a> features Ruang, a small volcanic island in North Sulawesi, Indonesia. The tranquil environment of Ruang was shattered by a powerful volcanic eruption on the night of April 16, 2024.</p>



<p>This event has left the island's 800 residents grappling with its devastating aftermath, while scientists are assessing its potential global effects.</p>



<h2 class="wp-block-heading" id="h-a-violent-awakening-on-ruang">A violent awakening on Ruang</h2>



<p>Ruang, located in the Sangihe Islands arc, is known for its long history of <a href="https://www.earth.com/news/volcanic-eruptions-play-an-overlooked-role-in-earths-climate/" target="_blank" rel="noreferrer noopener">volcanic activity</a>, but the intensity of the latest eruption has been particularly alarming. The <a href="https://www.earth.com/news/explosive-volcanic-eruption-triggered-an-hours-long-thunderstorm/" target="_blank" rel="noreferrer noopener">eruption</a> produced explosive discharges, sending vast plumes of ash and gas soaring into the stratosphere. The force of nature transformed lush greenery into a gray wasteland.</p>



<p>“Late on April 16, 2024, the mountain roared to life, unleashing a series of explosive eruptions that, at times, sent plumes of ash and gas billowing high into the stratosphere. The eruption also bombarded the island with tephra, small pebbles of lapilli, and fine shards of pulverized rock called ash,” said NASA.</p>



<h2 class="wp-block-heading" id="h-extensive-damage-and-humanitarian-efforts">Extensive damage and humanitarian efforts</h2>



<p>The eruption's immediate impact was severe, with settlements on the north side of Ruang and Laingpatehi village experiencing extensive damage due to volcanic debris.&nbsp;</p>



<p>More than 500 houses were destroyed or severely damaged, according to Indonesia’s disaster management agency, Badan Nasional Penanggulangan Bencana (BNPB). The heavy ashfall also impacted local agriculture, damaging crops and farms.&nbsp;</p>



<p>In response to the crisis, the Sam Ratulangi International Airport in nearby Manado was temporarily closed, disrupting travel and causing widespread flight cancellations. It was not until April 22 that the airport could reopen, following significant cleanup efforts and a decrease in the volcanic threat level.</p>



<h2 class="wp-block-heading" id="h-scientific-analysis-and-global-concerns">Scientific analysis and global concerns</h2>



<p>The eruption has attracted significant scientific interest due to the vast quantities of ash and sulfur dioxide it emitted. Atmospheric scientist Ghassan Taha from NASA’s Goddard Space Flight Center noted, "We expect to see aerosol particles circulating in the stratosphere for weeks, if not months." This observation is critical as particles reaching this altitude can have extensive, albeit temporary, effects on global climate patterns.</p>



<p>Volcanologist Simon Carn from Michigan Technological University reported that the eruption released between 0.3 to 0.5 teragrams of sulfur dioxide on April 17 and 18. These levels, while substantial, fall below the threshold generally required to affect global temperatures significantly.&nbsp;</p>



<p>For context, the 1991 Mount Pinatubo eruption, which had a pronounced cooling effect on the Earth's climate, released approximately 20 teragrams of sulfur dioxide.</p>



<h2 class="wp-block-heading" id="h-preparedness-and-future-risks">Preparedness and future risks</h2>



<p>In light of Ruang's active volcanic history and the potential for further eruptions, local authorities remain vigilant. The risk of lahars and tsunamis prompted immediate evacuations and multiple tsunami warnings, though, fortunately, no substantial tsunamis have occurred thus far. Over 16,000 residents have been evacuated from the most vulnerable areas, a move that has likely prevented any fatalities or serious injuries.</p>



<p>The 2024 <a href="https://www.earth.com/news/underwater-volcanic-eruptions-are-more-harmful-than-previously-believed/" target="_blank" rel="noreferrer noopener">eruption</a> of Ruang is a stark reminder of the powerful and often unpredictable nature of volcanic islands. While the local and immediate impacts are devastating, the eruption also offers valuable data for scientists studying the broader implications of such natural events on atmospheric conditions and climate. </p>



<h2 class="wp-block-heading" id="h-more-about-ruang">More about Ruang</h2>



<p>The population on Ruang is small, with residents primarily engaged in subsistence fishing and agriculture, which is typical of remote Indonesian islands. The island's terrain and soil fertility, influenced by volcanic ash, may support the cultivation of certain crops that are adapted to such conditions.</p>



<p>The Ruang volcano rises to about 725 meters above sea level, making it a prominent feature in the region. This area is part of the volcanic arc that includes numerous volcanoes produced by the subduction of the oceanic plate under the continental margin.</p>



<p>The active stratovolcano has had several recorded eruptions in history, with significant activity occurring in 1871, 1873, and 2002.&nbsp;</p>



<p>The image was captured by the Operational Land Imager (OLI) on April 20, 2024.</p>



<p>Image Credit: NASA Earth Observatory&nbsp;</p>



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Ruang volcano eruption has devastated the tranquil island

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

<p>Today's <strong>Image of the Day</strong> from <a href="https://earthobservatory.nasa.gov/" target="_blank" rel="noreferrer noopener">NASA Earth Observatory</a> features the Bermejo River and the Río Grande de Tarija, which flow through Argentina and Bolivia in South America. The photograph was captured by an astronaut onboard the International Space Station.</p>



<h2 class="wp-block-heading" id="h-meandering-rivers">Meandering rivers</h2>



<p>“The meandering rivers in this image are sourced in the Andes Mountains and generally flow southeast through valleys in the foothills - the region between the high mountains and plains. The Iruya River deposits particles of silt and clay as it flows into the valley centered in this image,” said NASA.</p>



<p>“Visible indications of the rivers’ shifting channels include river islands, point bars (on the inside curve of streams), and several meander scars. Such scars form when a river gets cut off from the main flow and fills in with sediment, soil, and vegetation.”</p>



<p>“Sediment from the adjacent highlands filled valleys that were formed by tectonic forces driving uplift of the Andes. These deposits are subsequently carried by rivers, such as the Iruya, along with new sediment to form the light-toned braided channels and the adjacent darker-toned floodplains. Nutrient-rich floodplain soils provide fertile ground for agricultural fields.”</p>



<h2 class="wp-block-heading" id="h-bermejo-river">Bermejo River</h2>



<p>The Bermejo River originates in the Bolivian <a href="https://www.earth.com/news/biodiversity-hotspots-are-shrinking-in-the-andes-mountains/" target="_blank" rel="noreferrer noopener">Andes</a> and flows into Argentina. It plays a crucial role in the geographical and ecological landscape of the region. The river's course is characterized by its meandering path through the Gran Chaco plain, making it a significant river in the region's hydrological system.</p>



<h3 class="wp-block-heading" id="h-economic-importance">Economic importance</h3>



<p>The Bermejo River is vital for agriculture, providing essential water resources for irrigation. It also has potential for hydroelectric power generation.</p>



<h3 class="wp-block-heading" id="h-biodiversity-nbsp">Biodiversity&nbsp;</h3>



<p>The diverse habitats created by the Bermejo River, including its riverbanks, floodplains, and adjacent forests, support rich biodiversity. However, the wildlife in this region faces threats from habitat destruction, pollution, and climate change, making conservation efforts critical for their survival.</p>



<p><a href="https://www.earth.com/news/jaguars-in-the-amazon-are-threatened-by-climate-extremes/" target="_blank" rel="noreferrer noopener">Jaguars</a> are the apex predators of this region, and are occasionally spotted along the riverbanks, where they hunt. Large, herbivorous mammals called tapirs are found in the forests around the Bermejo River. They often visit the river to drink and cool off.</p>



<p>Capibaras, the world’s largest rodents, are commonly found in the wetlands and along the river edges.</p>



<p>The tallest flying bird found in South and Central America, jabirus can often be seen in wetlands along the Bermejo River. Toco toucans, known for their colorful bills, can be found in the forested areas near the river.</p>



<h2 class="wp-block-heading" id="h-rio-grande-de-tarija">Río Grande de Tarija</h2>



<p>The Río Grande de Tarija, also known in its lower stretches as the Guadalquivir, flows primarily within Bolivia. It is a critical watercourse in the Tarija Department, contributing significantly to the region's agriculture and livelihoods.</p>



<h3 class="wp-block-heading" id="h-economic-importance-0">Economic importance</h3>



<p>This river is essential for irrigation, supporting a variety of crops and contributing to the local economy. The surrounding lands are fertile and productive, thanks to the river's water.</p>



<h3 class="wp-block-heading" id="h-challenges">Challenges</h3>



<p>Similar to other rivers, the Río Grande de Tarija faces challenges such as water management issues, <a href="https://www.earth.com/news/predicting-the-effects-of-pollutants-on-river-ecosystems/" target="_blank" rel="noreferrer noopener">pollution</a>, and the impacts of climate change on its flow and health.</p>



<h3 class="wp-block-heading" id="h-wildlife-in-bolivian-rivers">Wildlife in Bolivian rivers</h3>



<p>River basins in Bolivia are home to a wide range of bird species, including various species of herons, egrets, kingfishers, and perhaps even some rarer species like the wattled jacana or the sunbittern. The diverse birdlife is attracted to the abundance of fish and the relatively untouched natural habitats along the river.</p>



<p>The Characidae family includes many fish species that are commonly found in South American rivers, such as tetras. They are known for their diversity and are a key part of the river's ecosystem, serving as both <a href="https://www.earth.com/news/diving-to-extremes-predatory-fish-frequent-the-oceans-twilight-zone/" target="_blank" rel="noreferrer noopener">predator</a> and prey.</p>



<p>Cichlids are another diverse group of fish that can be found in South American rivers. They are appreciated by aquarium enthusiasts worldwide and play significant roles in their ecosystems as both predators and herbivores.</p>



<p>The rivers of Bolivia are also home to various catfish species, which are well adapted to life in muddy and turbulent waters. These include the armored catfish, which are often found clinging to rocks and logs.</p>



<p>Image Credit: NASA Earth Observatory/ ISS Crew Earth Observations Facility/ Earth Science and Remote Sensing Unit, Johnson Space Center</p>



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<h3 class="wp-block-heading" id="h-nbsp">&nbsp;</h3>

The Río Grande de Tarija and Bermejo River in South America

<p>Today's <strong>Image of the Day</strong> from <a href="https://earthobservatory.nasa.gov/" target="_blank" rel="noreferrer noopener">NASA Earth Observatory</a> features the delta of the Ebro River on the northeast coast of Spain, captured by the Copernicus Sentinel-2 mission.</p>



<h2 class="wp-block-heading" id="h-ebro-river">Ebro River</h2>



<p>“Stretching across 910 km of northern Spain, the Ebro River is the second-longest river in the Iberian Peninsula. In the image, it can be seen as a green line winding its way through the peninsula before flowing into the Mediterranean, shaping the Ebro Delta,” noted ESA.</p>



<p>“The Ebro River discharges more water into the sea than any other river in Spain. As suspended sediment flows from the river’s mouth, it tints the coastal waters with a turquoise hue.”</p>



<h2 class="wp-block-heading" id="h-ebro-delta">Ebro Delta</h2>



<p>The Ebro Delta is one of the largest <a href="https://www.earth.com/news/wetland-methane-emissions-have-surged-at-high-latitudes/">wetland areas</a> in the western Mediterranean region. The river's basin is the largest in Spain, covering about 85,000 square kilometers.</p>



<h2 class="wp-block-heading" id="h-historical-significance-nbsp">Historical significance&nbsp;</h2>



<p>Historically, the Ebro River has been significant in numerous battles, including the famous Battle of the Ebro during the Spanish Civil War, which was one of the war's longest and deadliest conflicts.&nbsp;</p>



<h2 class="wp-block-heading" id="h-economic-significance-nbsp">Economic significance&nbsp;</h2>



<p>Economically, the Ebro plays a crucial role in agriculture, particularly in regions like La Rioja and Navarre, which are known for their vineyards. Additionally, the river supports various industries and hydroelectric power generation.</p>



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



<p>The Ebro Delta is ecologically rich, providing habitat for diverse bird species. It is also a vital area for rice cultivation in Spain.&nbsp;</p>



<h3 class="wp-block-heading" id="h-nature-reserve">Nature reserve</h3>



<p>“Most of the delta comprises the Ebro Delta Nature Reserve. With its protected wetlands, beaches, marshes, salt pans and estuaries, this reserve provides a natural habitat for numerous migratory birds and waterfowl,” said ESA.</p>



<h3 class="wp-block-heading" id="h-environmental-challenges-nbsp">Environmental challenges&nbsp;</h3>



<p>The river and its delta face environmental challenges such as pollution, water extraction for irrigation, and the impacts of <a href="https://www.earth.com/news/climate-change-may-have-altered-river-flow-worldwide/">climate change</a>, which threaten its ecosystem and the sustainability of its water resources.</p>



<h2 class="wp-block-heading" id="h-the-northeast-coast-of-spain">The northeast coast of Spain</h2>



<p>The northeast coast of Spain is a vibrant and diverse region, characterized by its rich history, unique culture, and stunning landscapes. </p>



<p>It includes the autonomous communities of Catalonia, which features the dynamic city of Barcelona, and part of the Valencian Community. This area is also part of what is known as the Costa Brava, which stretches from the town of Blanes up to the French border.</p>



<h3 class="wp-block-heading" id="h-geography">Geography</h3>



<p>The <a href="https://www.earth.com/news/human-activity-impacts-97-percent-of-the-worlds-coastline/">coastline</a> is renowned for its rugged beauty, with rocky cliffs, secluded coves, and small beaches. The interior regions feature mountains such as the Pyrenees, which offer skiing in winter and hiking in the summer.</p>



<h3 class="wp-block-heading" id="h-cultural-heritage">Cultural heritage</h3>



<p>The area has a strong cultural identity, particularly in Catalonia, where there is a significant movement for independence. The Catalan language is widely spoken alongside Spanish. The region is also known for its festivals, architecture (notably the works of Antoni Gaudí in Barcelona), and traditional dances like the Sardana.</p>



<h3 class="wp-block-heading" id="h-cuisine">Cuisine</h3>



<p>The cuisine is a delightful mix of fresh seafood from the Mediterranean, traditional Catalan dishes like "pa amb tomàquet" (bread with tomato), and rice dishes such as paella in the Valencian region. The area is also famous for its wines, including the sparkling wine Cava.</p>



<h3 class="wp-block-heading" id="h-tourism">Tourism</h3>



<p>The northeast coast attracts millions of tourists each year due to its beautiful beaches, historical sites, and vibrant cities. Barcelona, in particular, is a major tourist destination with attractions like the Sagrada Familia, Park Güell, and the bustling La Rambla.</p>



<h3 class="wp-block-heading" id="h-economy">Economy</h3>



<p>The economy of the northeast coast is one of the most dynamic in Spain, with Barcelona serving as a major hub for trade, education, entertainment, and technology.</p>



<p>Image Credit: NASA Earth Observatory</p>



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The Ebro River on the northeast coast of Spain

<p>Today's <strong>Image of the Day</strong> from <a href="https://earthobservatory.nasa.gov/" target="_blank" rel="noreferrer noopener">NASA Earth Observatory</a> features the United Arab Emirates, where a slow-moving storm system dumped more than a year's worth of rainfall in just a few hours. </p>



<p>“The UAE’s National Center for Meteorology reported that eastern parts of the country measured up to 250 millimeters (10 inches) of rain in less than 24 hours. UAE, known for its dry desert climate, receives only about 140 to 200 millimeters (5.5 to 8 inches) of rainfall per year,” said NASA.</p>



<p>“Dubai International Airport recorded 119 millimeters on April 16, which is 1.5 times its typical annual rainfall. The deluge temporarily halted flights at the airport, which is among the world’s busiest for international travel.”</p>



<h2 class="wp-block-heading" id="h-heaviest-rainfall-on-record-in-the-united-arab-emirates-nbsp">Heaviest rainfall on record in the United Arab Emirates&nbsp;</h2>



<p>Authorities noted that this was the heaviest <a href="https://www.earth.com/news/record-heat-fueled-unexpected-and-deadly-storms-in-2023/" target="_blank" rel="noreferrer noopener">rainfall</a> on record in the United Arab Emirates. The news agency WAM called it a historic weather event that surpassed “anything documented since the start of data collection in 1949.”&nbsp;</p>



<p>“Heavy rain triggered flash flooding across eastern parts of the country, inundating roads and disrupting transportation,” said NASA. “The system first hit Oman on April 14 and continued to batter the UAE through most of the day on April 16.”&nbsp;</p>



<p>At least 18 people were killed in the <a href="https://www.earth.com/news/heavy-rainfall-events-in-the-northeast-are-set-to-increase-by-over-50-percent/" target="_blank" rel="noreferrer noopener">heavy rains</a> in Oman, including ten children that were swept away in a vehicle with one adult, according to a statement from the country’s National Committee for Emergency Management.&nbsp;</p>



<h2 class="wp-block-heading" id="h-strong-low-pressure-system">Strong low-pressure system</h2>



<p>Michael Mann, a climate scientist at the University of Pennsylvania, noted that three low-pressure systems formed a train of <a href="https://www.earth.com/news/thunderstorms-are-becoming-more-intense-due-to-climate-change/" target="_blank" rel="noreferrer noopener">storms</a> slowly moving along the jet stream - the river of air that moves weather systems - toward the Persian Gulf.&nbsp;</p>



<p>“The strong low-pressure system delivered multiple rounds of high winds and heavy rain to the northern and eastern parts of the country,” said NASA. “Some areas remained flooded on April 19, when Landsat 9 passed over the region for the first time since the storms.”&nbsp;</p>



<p>Climate experts attribute such extreme weather events to <a href="https://www.earth.com/news/limiting-global-warming-to-1-5-degrees-celsius-would-save-billions-of-lives/" target="_blank" rel="noreferrer noopener">global warming</a>. According to a report from Reuters, researchers anticipate that climate change will lead to hotter temperatures, increased humidity, and a greater risk of <a href="https://www.earth.com/news/seeking-ways-to-prevent-flooding-caused-by-climate-change/" target="_blank" rel="noreferrer noopener">flooding</a> in parts of the Gulf region. “Countries like the UAE where there is a lack of drainage infrastructure to cope with heavy rains can suffer the most,” the report stated.&nbsp;</p>



<h2 class="wp-block-heading" id="h-more-about-the-united-arab-emirates-nbsp">More about the United Arab Emirates&nbsp;</h2>



<p>The United Arab Emirates (UAE) is a federation of seven emirates located on the eastern side of the Arabian Peninsula. It borders Oman and Saudi Arabia, and has maritime borders with Iran and Qatar in the Persian Gulf. Established as a federation in 1971, the UAE has rapidly developed into one of the most modern and wealthy nations in the world, largely thanks to its vast oil and natural gas reserves.</p>



<p>Abu Dhabi serves as the capital and is the largest emirate, both in terms of land area and economy, largely because it holds the majority of the UAE's oil reserves. Dubai is the most populous city and is renowned globally for its spectacular skyscrapers, including the Burj Khalifa, the tallest building in the world, as well as its bustling ports, and vibrant tourism and shopping sectors.</p>



<p>The UAE has a diverse and multicultural society with a significant expatriate population, drawn by business opportunities and the tax-free living in many sectors. The official language is Arabic, though English is widely spoken, especially in business and educational settings.</p>



<p>Politically, the UAE is a federal absolute monarchy. It is governed by a Supreme Council of Rulers made up of the seven emirs, who appoint the prime minister and the cabinet. The country has made significant strides in terms of infrastructure and healthcare, and it continues to invest heavily in various sectors including renewable energy, education, and technology.</p>



<p>Culturally, the UAE balances its rapid modernization with a strong commitment to traditional Arab culture. The heritage of the desert Bedouin lifestyle is celebrated with falconry, camel racing, and traditional dance remaining integral to its cultural festivities. The nation is also a major hub for international arts and sports events, enhancing its global profile and cultural footprint.</p>



<p>Image Credit: NASA Earth Observatory&nbsp;</p>



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Storms dumped record rainfall in the United Arab Emirates

<p>Today's <strong>Image of the Day</strong> from the <a href="https://www.esa.int/" target="_blank" rel="noreferrer noopener">European Space Agency </a>features the barred spiral galaxy NGC 3783, which is located about 130 million light-years away in the constellation Centaurus. NGC 3783 is also the most prominent of a galaxy group (by the same name) that contains 47 <a href="https://www.earth.com/news/james-webb-captures-galaxies-that-are-too-old-to-exist/" target="_blank" rel="noreferrer noopener">galaxies</a>. </p>



<h2 class="wp-block-heading" id="h-galaxy-groups">Galaxy groups</h2>



<p>“Like galaxy clusters, galaxy groups are aggregates of gravitationally bound galaxies. Galaxy groups, however, are less massive and contain fewer members than <a href="https://www.earth.com/news/titanic-galaxy-cluster-collision-defies-all-current-understanding-of-the-universe/" target="_blank" rel="noreferrer noopener">galaxy clusters</a> do: where galaxy clusters can contain hundreds or even thousands of constituent galaxies, galaxy groups do not typically include more than 50,” noted ESA.</p>



<p>“The Milky Way is actually part of a galaxy group, known as the Local Group, which contains two other large galaxies (Andromeda and the Triangulum galaxy), as well as several dozen satellite and dwarf galaxies.”</p>



<h2 class="wp-block-heading" id="h-hd-101274-a-blue-giant-star">HD 101274: A blue giant star</h2>



<p>The bright object that appears to the right of the galaxy is the star HD 101274. “The perspective in this image makes the star and the galaxy look like close companions, but this is an illusion. HD 101274 lies only about 1,530 light-years from Earth, meaning it is about 85 thousand times closer than NGC 3783,” explained ESA.&nbsp;</p>



<p>HD 101274 is part of the NGC 3766 cluster, which is sometimes referred to as the Pearl Cluster, an open cluster known for its richness in bright stars and its relatively young age.</p>



<p>HD 101274 is categorized as a blue giant star, characterized by its high temperature and luminosity. Blue giants are massive stars that have left the main sequence phase of stellar evolution and are burning helium or heavier elements in their cores. These stars are known for their short lifespans relative to smaller stars due to their rapid consumption of nuclear fuel.</p>



<p><a href="https://www.earth.com/news/dark-stars-scientists-discover-a-new-type-of-star-powered-by-dark-matter/" target="_blank" rel="noreferrer noopener">Stars</a> like HD 101274 are important for astronomers because they help in studying the properties of stellar populations in clusters and the dynamics of stellar evolution in different environments. The spectral and photometric observations of such stars can provide valuable insights into the characteristics of their atmospheres, internal structures, and the processes occurring within and around them.</p>



<h2 class="wp-block-heading" id="h-bright-central-region-of-ngc-3783">Bright central region of NGC 3783</h2>



<p>One of the most interesting aspects of NGC 3783 is that it harbors an active galactic nucleus, meaning its central region is exceptionally luminous, likely due to the presence of a supermassive black hole. This black hole is actively accreting material, which emits a substantial amount of radiation as it spirals inward and heats up.</p>



<p>This galaxy is particularly known for its bright central region and has been studied extensively in the ultraviolet and X-ray light spectra to understand better the properties of the accretion disk around the black hole and the complex dynamics of the material surrounding it. These studies are crucial for understanding the physics of active galactic nuclei and the role they play in <a href="https://www.earth.com/news/galaxies-like-our-own-milky-way-are-not-unique/" target="_blank" rel="noreferrer noopener">galaxy evolution</a>.</p>



<p>According to ESA, NGC 3783 is a Type I Seyfert galaxy. “In this image it is recorded by Hubble in incredible detail, from its glowing central bar to its narrow, winding arms and the dust threaded through them, thanks to five separate images taken in different wavelengths of light," noted ESA.</p>



<p>“In fact, the galactic center is bright enough to Hubble that it exhibits diffraction spikes, normally only seen on stars such as HD 101274.”</p>



<h2 class="wp-block-heading" id="h-more-about-the-ngc-3783-galaxy-group">More about the NGC 3783 galaxy group</h2>



<p>The NGC 3783 group is part of the larger Hydra-Centaurus Supercluster, which itself is a massive collection of galaxies and galaxy clusters located primarily in the constellations of Hydra and Centaurus.</p>



<p>The NGC 3783 group consists of several galaxies that are gravitationally bound and interact with each other. These interactions can influence the galaxies' evolution through mechanisms like tidal forces and merger events, which can trigger star formation, fuel central black holes, and reshape the galaxies' structures.</p>



<p>Studying groups like the NGC 3783 group helps astronomers understand how <a href="https://www.earth.com/news/ceers-2112-ancient-galaxy-looks-strikingly-similar-to-ours/" target="_blank" rel="noreferrer noopener">galaxies</a> evolve together in a common gravitational environment, offering insights into the dynamics and evolution of structures on cosmic scales. This is especially relevant in understanding how galaxies influence each other through gravitational interactions and the environmental effects on galaxy evolution.</p>



<p>Image Credit: ESA/Hubble &amp; NASA</p>



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The luminous galaxy NGC 3783 and a blue giant star

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

<p>Each day, roughly 43 million Americans indulge in at least one slice of <a href="https://www.earth.com/news/physics-perfect-pizza/" target="_blank" rel="noreferrer noopener">pizza</a>, contributing an impressive $47 billion annually to the U.S. economy. A significant portion of these pizzas arrives in corrugated cardboard boxes, posing a notable challenge for waste management due to their contamination with fats, oils, and greases (FOGs). Therefore, recycling pizza boxes is essential.</p>



<p>Unfortunately, the contaminants make pizza boxes a <a href="https://www.earth.com/news/global-recycling-day-creating-a-healthier-planet-for-all/" target="_blank" rel="noreferrer noopener">recycling</a> nightmare. Delicious, cheesy slices leave a greasy residue that renders the pizza boxes unsuitable for traditional recycling processes.</p>



<p>Compounds like peanut butter and pizza box grease are also incredibly difficult to clean off, essentially relegating many of these boxes to landfills.</p>



<h2 class="wp-block-heading" id="h-recycling-pizza-boxes">Recycling pizza boxes</h2>



<p>Researchers at Idaho National Laboratory (<a href="https://inl.gov/" target="_blank" rel="noreferrer noopener">INL</a>) have embarked on a mission to change this. Consequently, they've developed a new method to decontaminate cardboard, which could revolutionize recycling practices for food containers. </p>



<p>Their latest publication in the <em>Journal of Cleaner Production</em> details this breakthrough, highlighting a process that uses material separation capabilities to address the issue.</p>



<p>"To make specific separations possible, we need to first prove the overall concept of material separations, which is what this study accomplished," explained Aaron Wilson, the principal investigator for this project.</p>



<h2 class="wp-block-heading" id="h-dimethyl-ether-for-pizza-box-recycling">Dimethyl ether for pizza box recycling</h2>



<p>The heart of their experiment lies in the use of dimethyl ether (DME), a green solvent known for its use in refrigeration. The team designed a system with two vertical stainless-steel reactors to facilitate the extraction and separation of FOGs from contaminated cardboard. </p>



<p>The process begins by mixing broken-down cardboard pieces with DME, which pulls the contaminants out of the cardboard. The system then <a href="https://www.earth.com/news/people-recycle-know-new-products/" target="_blank" rel="noreferrer noopener">recycles</a> this solvent, allowing for continuous operation without creating waste.</p>



<p>"The reactor process allowed us to extract the contaminants into separate fractions," Wilson shared, noting the successful separation of oils, water, and dryer solids into distinct components.</p>



<h2 class="wp-block-heading" id="h-pizza-box-recycling-on-the-front-lines">Pizza box recycling on the front lines</h2>



<p>The implications of this research extend beyond just cleaner recycling.  Originally part of a research initiative linked to the Defense Advanced Research Project Agency (DARPA) <a href="https://www.darpa.mil/program/resource" target="_blank" rel="noreferrer noopener">ReSource Program</a>, the technology developed could significantly reduce the logistical footprint of military operations by transforming waste into useful resources. </p>



<p>This has potential benefits for operational security and efficiency, particularly in hostile environments where supply lines are vulnerable.</p>



<p>"Knowing that this works for the highly contaminated <a href="https://www.earth.com/news/creators-of-forever-chemicals-covered-up-the-toxic-dangers-for-decades/" target="_blank" rel="noreferrer noopener">pizza boxes</a> has helped validate the system for use in the battlefield," stated Jeff Lacey, another leading researcher on the project. </p>



<p>Lacey's team is now focused on refining the technology to enhance its portability and efficiency, critical factors for deployment in military contexts.</p>



<h2 class="wp-block-heading" id="h-sustainable-future">Sustainable future</h2>



<p>The successful application of this technology to pizza box waste not only promotes environmental sustainability but also opens doors to myriad other applications. From converting military waste to enabling more efficient battery recycling, the potential is vast.</p>



<p>"In essence, this research has many possible applications for national security and a net-zero future," Lacey concluded.</p>



<p>This initiative represents a significant step forward in tackling the recycling challenges posed by everyday waste and could pave the way for innovative <a href="https://www.earth.com/news/international-day-of-zero-waste-a-global-commitment-to-a-sustainable-future/" target="_blank" rel="noreferrer noopener">waste management</a> solutions across various sectors.</p>



<h2 class="wp-block-heading" id="h-benefits-of-recycling-pizza-boxes">Benefits of recycling pizza boxes</h2>



<p>Recycling pizza boxes offers substantial environmental and economic benefits that contribute to sustainability efforts. Here’s a detailed look at these advantages:</p>



<h3 class="wp-block-heading" id="h-reduces-waste-in-landfills">Reduces waste in landfills</h3>



<p>One of the immediate benefits of recycling pizza boxes is the reduction of waste sent to landfills. Pizza boxes are made from corrugated cardboard, which is biodegradable but can still take a considerable amount of time to decompose in landfill conditions. </p>



<p>Moreover, the presence of greases and residues can slow down this process and contribute to the production of methane, a potent greenhouse gas. By recycling, these materials are reused rather than occupying landfill space.</p>



<h3 class="wp-block-heading" id="h-conserves-natural-resources">Conserves natural resources</h3>



<p>Recycling cardboard, including pizza boxes, helps conserve valuable natural resources, particularly wood fibers. The fibers in cardboard can be recycled several times before they become too short for paper production. This means that fewer trees need to be cut down to produce new cardboard, helping to preserve forests and the biodiversity within them.</p>



<h3 class="wp-block-heading" id="h-saves-energy">Saves energy</h3>



<p>The process of recycling cardboard uses significantly less energy than producing new cardboard from virgin pulp. Energy savings arise from reduced demands in raw material extraction, transportation, and processing. By using less energy, recycling also lowers greenhouse gas emissions, contributing to climate change mitigation.</p>



<h3 class="wp-block-heading" id="h-prevents-pollution">Prevents pollution</h3>



<p>By recycling pizza boxes, pollution generated from the production of new cardboard is also reduced. The manufacturing of cardboard from virgin materials involves various chemical processes that can release pollutants into the air and water. Recycling helps to minimize these pollutants, leading to cleaner air and water.</p>



<h3 class="wp-block-heading" id="h-economic-benefits">Economic benefits </h3>



<p>Recycling creates more jobs than landfilling or incineration. The process of collecting, sorting, and processing recyclable materials is more labor-intensive than using these materials as a fuel source or burying them. This means more employment opportunities in the recycling and manufacturing industries.</p>



<h3 class="wp-block-heading" id="h-encourages-sustainable-practices">Encourages sustainable practices</h3>



<p>Recycling pizza boxes can foster a culture of recycling and sustainability within communities. When people engage in recycling, they become more aware of their waste habits and environmental impact. This awareness can lead to broader support for other sustainable practices, such as reducing plastic use, conserving water, and supporting renewable energy.</p>



<h3 class="wp-block-heading" id="h-improves-community-health-and-safety">Improves community health and safety</h3>



<p>By reducing the amount of waste in landfills and decreasing pollution from new production processes, recycling helps to improve overall community health. Less landfill waste reduces potential soil and water contamination, and fewer emissions mean cleaner air and fewer respiratory issues for the community.</p>



<p>The full study was published in the journal <em><em><a href="https://www.sciencedirect.com/science/article/abs/pii/S0959652623032389?via%3Dihub" target="_blank" rel="noreferrer noopener">Journal of Cleaner Production</a></em></em>.</p>



<p>-----</p>



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New recycling solution tackles greasy pizza boxes

Each day, roughly 43 million Americans indulge in at least...

<p>The tobacco industry may have found a new way to target our <a href="https://www.earth.com/news/social-media-platforms-earned-11-billion-last-year-from-kids-in-the-u-s/" target="_blank" rel="noreferrer noopener">kids</a>, and it's hiding in plain sight. Disguised as cool vibes and social trends, a new study reveals that <a href="https://www.earth.com/news/social-media-posts-are-not-a-good-representation-of-our-true-selves/" target="_blank" rel="noreferrer noopener">social media</a> is having a powerful influence on teen smoking initiation.</p>



<p>What seems like harmless digital content can have lasting, real-world consequences. A remarkable new study by Boston University School of Public Health (<a href="https://www.bu.edu/sph/" target="_blank" rel="noreferrer noopener">BUSPH</a>) sheds light on this worrying connection, demonstrating how social media use heavily influences youth habits.</p>



<h2 class="wp-block-heading" id="h-social-media-use-and-smoking">Social media use and smoking</h2>



<p>According to the study, teens who use social media every day face a 67% higher risk of starting to smoke compared to those who use these platforms less often. This demonstrates the powerful influence social media has on youth behavior.</p>



<p>Approximately 10% of middle and high school students – a staggering 2.8 million kids – are currently using at least one tobacco product. This shockingly high number shows how successful tobacco companies are in reaching young people.</p>



<p>Moreover, e-cigarettes and vaping are making the problem even worse. Many teens now use multiple tobacco products, increasing their exposure to harmful chemicals and long-term health risks.</p>



<p>"Our results add to a growing body of literature documenting the harms of <a href="https://www.earth.com/news/spending-less-time-on-social-media-improves-your-mental-health/" target="_blank" rel="noreferrer noopener">social media</a> use for this age group, as well as how commercial interests such as the tobacco industry are targeting kids on these platforms," says study lead author Dr. Lynsie Ranker, assistant professor of community health sciences at BUSPH.</p>



<h2 class="wp-block-heading" id="h-tobacco-industry-targeting-young-minds">Tobacco industry targeting young minds</h2>



<p>The tobacco industry has a long history of targeting youth, and social media is their latest weapon. Their tactics are carefully designed to appeal to and manipulate young minds.</p>



<p>Flavors like cotton candy and bubblegum in e-cigarettes are deliberately aimed at teens and young adults. These flavors mask the harshness of nicotine and make the products seem fun and harmless.</p>



<p>Moreover, by partnering with celebrities and popular <a href="https://www.earth.com/news/social-media-break-can-significantly-improve-mental-health/" target="_blank" rel="noreferrer noopener">social media</a> influencers, they create an illusion of glamour and social acceptance around smoking and vaping. This makes these products seem desirable and trendy.</p>



<p>Images of happy groups using tobacco or vaping products create the false perception that "everyone's doing it." This taps into the natural teenage desire to feel included and can pressure teens to experiment to avoid feeling left out.</p>



<h2 class="wp-block-heading" id="h-from-social-media-scrolling-to-smoking">From social media scrolling to smoking</h2>



<p>The Boston University study reveals critical details about the tactics social media uses to influence teens' tobacco use. Surprisingly, teens who use social media every day are at the highest risk. </p>



<p>This underscores how repeated exposure to pro-tobacco messages and images gradually breaks down their resistance and makes smoking seem more normal.</p>



<p>Even seemingly small <a href="https://www.earth.com/news/how-you-use-social-media-affects-your-sense-of-happiness/" target="_blank" rel="noreferrer noopener">interactions</a>, like liking or following a tobacco brand's page, increases a teen's risk of trying tobacco. These actions make teens more receptive to the idea of smoking, slowly changing their perception of the product.</p>



<h2 class="wp-block-heading" id="h-influencers-and-social-norming">Influencers and "social norming"</h2>



<p>As discussed, social media often presents a highly edited and unrealistic view of the world. When teens constantly see their peers or favorite influencers seemingly enjoying tobacco products without consequences, it has a dangerous impact.</p>



<p>This constant exposure normalizes tobacco use. It makes smoking and vaping seem like harmless everyday activities rather than a serious health risk.</p>



<p>Images of others seemingly having fun while using tobacco can trigger FOMO (Fear Of Missing Out) in teens. This powerful emotion can push teens to experiment with tobacco just to feel like they belong to the perceived "in" crowd.</p>



<h2 class="wp-block-heading" id="h-who-is-responsible">Who is responsible?</h2>



<p>"It is not surprising that tobacco manufacturers target youth through social media,” says study coauthor Dr. Traci Hong, professor of media science at Boston University College of Communication.</p>



<p>Currently, the burden of regulating tobacco promotion on social media is largely left up to the platforms themselves. This has resulted in a confusing patchwork of policies that tobacco companies are all too adept at exploiting.</p>



<p>"Based on our research, social media platforms lack self-regulation,” says study coauthor Dr. Jessica Fetterman, assistant professor of medicine at Boston University <a href="https://www.bumc.bu.edu/camed/" target="_blank" rel="noreferrer noopener">Chobanian &amp; Avedisian School of Medicine</a>. "The government must step forward to regulate tobacco marketing on social media, just as they have done for other forms of media such as TV and print ads.”</p>



<h2 class="wp-block-heading" id="h-how-to-stop-teens-on-social-media-from-smoking">How to stop teens on social media from smoking?</h2>



<p>We can't place the entire burden on legislation. Here's what parents, educators, and teens themselves can do:</p>



<h3 class="wp-block-heading" id="h-talk-openly">Talk openly</h3>



<p>Equipping our teens with the knowledge and tools to resist social media manipulation is crucial. Don't wait until you suspect a problem. Begin talking to teens about the dangers of tobacco use, including cigarettes, e-cigarettes, and vaping products, well before they enter their teenage years.</p>



<p>Provide teens with accurate information about the addictive nature of tobacco and the serious health risks associated with its use. Highlight the long-term consequences like lung cancer, heart disease, and respiratory problems.</p>



<p>Practice how teens can politely decline social pressure to experiment with tobacco. Role-playing potential situations and responses can empower them to make healthy choices.</p>



<h3 class="wp-block-heading" id="h-media-literacy-nbsp">Media literacy&nbsp;</h3>



<p>Help teens understand that not everything they see on social media is real, honest, or unbiased. Teach them to be savvy consumers of online content by asking themselves these key questions:</p>



<ul>
<li><strong>Who created this content?</strong> Is it an individual, a brand, an influencer, a news organization, etc.? Understanding the source helps evaluate potential motives.</li>
</ul>



<ul>
<li><strong>What is the purpose?</strong> Are they trying to sell something, promote an idea, entertain, or inform? Identifying the purpose reveals possible biases.</li>
</ul>



<ul>
<li><strong>How does this make me feel?</strong> Does the content make you feel insecure, excited, happy, or afraid? Strong emotions can be a sign of manipulation.</li>
</ul>



<ul>
<li><strong>Does this seem realistic?</strong> Is the content portraying situations or lifestyles that seem overly perfect or dramatic? Perfection is often a sign of staging, not reality.</li>
</ul>



<ul>
<li><strong>Where else can I find information?</strong> Encourage teens to cross-check facts on reputable news sites, government health websites (.gov), or educational organizations (.org) to see if the information aligns.</li>
</ul>



<h3 class="wp-block-heading" id="h-find-alternative-connections">Find alternative connections</h3>



<p>While social media can offer a form of connection, it cannot replace the value of genuine, face-to-face interactions. Sports teams, clubs, and activities provide a space for teens to meet others with shared interests. This fosters deeper friendships based on real connections, common experiences, and shared goals.</p>



<p>Focusing on in-person activities helps combat the feelings of loneliness and isolation that can result from excessive social media use.</p>



<p>Face-to-face interactions are essential for developing crucial communication skills like reading body language, resolving conflict, and having meaningful conversations – skills that don't always translate well online.</p>



<p>Feeling part of a team, contributing to a group project, or performing in front of an audience can all build confidence and self-worth – something that isn't as easily achieved through social media likes and comments.</p>



<p>Physical activity, creative pursuits, and shared hobbies offer healthy ways to manage stress and promote overall well-being.</p>



<p>Developing a healthy skepticism of online content takes time and practice. Encourage teens to have these conversations with friends, teachers, and parents as they navigate social media. Let's help our youth be smarter than the algorithms designed to manipulate them.</p>



<p>The study is published in <em><a href="https://www.sciencedirect.com/science/article/abs/pii/S0306460324000492?via%3Dihub" target="_blank" rel="noreferrer noopener">Addictive Behaviors</a></em>.</p>



<p>-----</p>



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Daily social media use makes teens more likely to start smoking

The tobacco industry may have found a new way to...

<p>Are you a parent who sometimes feels lonely, isolated, and burned out? You're not the only one. A new survey from the Ohio State University <a href="https://wexnermedical.osu.edu/" target="_blank" rel="noreferrer noopener">Wexner Medical Center</a> reveals an epidemic of parental loneliness. </p>



<p><a href="https://www.earth.com/news/parents-spend-the-most-time-on-devices-but-nature-offers-a-solution/" target="_blank" rel="noreferrer noopener">Parents</a> might miss the "small talk" and casual conversations that validate their parenting experiences. Fortunately, there are ways to combat the loneliness and connect with similar people.</p>



<h2 class="wp-block-heading" id="h-lonely-parents-epidemic">Lonely parents epidemic</h2>



<p>According to the research, 66% of <a href="https://www.earth.com/news/what-are-the-top-concerns-of-parents-as-kids-return-to-school/" target="_blank" rel="noreferrer noopener">parents</a> feel that parenthood can be isolating and lonely. This means that more than half of all parents experience times when they feel cut off from others and lacking in social connection. This feeling can be incredibly difficult, especially while navigating the demands of raising children.</p>



<p>Moreover, 62% of parents experience burnout. Over half of parents experience extreme exhaustion – physically, mentally, and emotionally – stemming from their parenting responsibilities. It's a sign that parents are being stretched too thin.</p>



<h2 class="wp-block-heading" id="h-both-physical-and-mental-health-is-impacted">Both physical and mental health is impacted</h2>



<p>38% of <a href="https://www.earth.com/news/sleep-debt-new-parents-lose-two-months-of-sleep-in-a-babys-first-year/" target="_blank" rel="noreferrer noopener">parents</a> feel unsupported in their parenting role. More than a third of parents feel they don't have a strong network of people to turn to for help, advice, or simply a listening ear. That lack of support adds another layer of stress to parenthood.</p>



<p>79% of parents want to connect with others outside of work and home. The overwhelming majority of parents are actively seeking ways to build bonds with other adults – to find community, share experiences, and feel less alone in their parenting journey.</p>



<p>"Loneliness has been shown to affect both your physical and mental health. So anything from cardiovascular disease to depression, anxiety, cognitive decline, even your immune system can be affected when you’re lonely, said Kate Gawlik, a researcher on parental burnout and mother of four. </p>



<p>"In fact, one study showed if you are in social isolation for a prolonged amount of time, it’s equivalent to smoking about 15 cigarettes a day," she continued.</p>



<p>Clearly, prioritizing connection in parenthood has a huge payoff for our well-being!</p>



<h2 class="wp-block-heading" id="h-community-for-lonely-parents">Community for lonely parents</h2>



<p>One of the most effective ways to combat <a href="https://www.earth.com/news/parents-play-a-crucial-role-in-the-evolution-of-intelligence/" target="_blank" rel="noreferrer noopener">parental</a> loneliness is by finding community – a place where parents can connect with others who truly understand their experiences.</p>



<p>Kate Gawlik's six-week parenting program is a great example of this type of community. Within these groups, parents are encouraged to open up about their challenges, their frustrations, and even their failures. This shared vulnerability creates a safe space where parents can feel seen, heard, and supported.</p>



<p>“I think the biggest thing is she validated that if you’re working and you have children and you’re a conscientious parent, it would be wild if you weren’t burned out. So I felt very validated when she said, “It’s okay that you’re here,” expressed Anne Helms, a mother of two young children in Columbus, Ohio.</p>



<h2 class="wp-block-heading" id="h-how-does-community-building-help-lonely-parents">How does community building help lonely parents?</h2>



<p>The research highlights a crucial aspect of fighting loneliness: finding people who understand what you're going through. Here's why it's so important:</p>



<h3 class="wp-block-heading" id="h-relatability-helps">Relatability helps</h3>



<p>Loneliness often comes with a deep sense of being misunderstood – the feeling that your struggles are unique and invisible to others. It's like you're shouting into the void, and no one hears you.</p>



<p>But when you connect with someone facing similar challenges, a remarkable shift occurs. Suddenly, your experiences are reflected back at you. Your worries, frustrations, and even your moments of doubt are echoed in another person's words. </p>



<p>This creates a profound feeling of recognition. You're no longer alone in your struggles; there's someone else standing right beside you on the same difficult path.</p>



<p>This mirroring of experiences chips away at that invisible wall of isolation. It replaces the feeling of being profoundly different with the comforting knowledge that even in our unique circumstances, the core of human experience is shared.</p>



<h3 class="wp-block-heading" id="h-lonely-parents-need-validation">Lonely parents need validation</h3>



<p>Loneliness often makes us question our own emotions. We might feel ashamed of our struggles, worry they're a sign of weakness, or believe that we're the only ones experiencing such difficulties.</p>



<p>When someone says, "I get it, I've felt that too," it's incredibly powerful. It's as if an invisible weight is lifted. Suddenly, those emotions you've been carrying alone don't seem as strange or overwhelming. They shift from a sign of being "abnormal" to a normal and shared part of the human experience.</p>



<p>This validation is essential because it fights the core of loneliness – the sense of being disconnected and different. When someone accepts your experiences without judgment, they create a space where you can feel seen and understood. This acceptance helps alleviate the isolating belief that no one else could possibly understand what you're going through.</p>



<h3 class="wp-block-heading" id="h-helping-lonely-parents-feel-empowered">Helping lonely parents feel empowered</h3>



<p>One of the most empowering aspects of overcoming parental loneliness is the realization that you're not alone. Sharing experiences with others facing similar struggles creates a sense of collective strength, where parents can draw on each other's resilience and find support. </p>



<p>This sharing of experiences also leads to practical solutions. Parents can learn new coping mechanisms, discover helpful resources, and gain fresh perspectives on common challenges. </p>



<p>Ultimately, it breaks the cycle of doubt that loneliness often fuels. By hearing others overcome similar difficulties, parents see firsthand that challenges are a normal part of the journey. This fosters a sense of "we can do this" – a belief in their ability to face obstacles and emerge stronger. </p>



<p>In essence, overcoming parental loneliness isn't just about feeling better; it's about feeling empowered. It's about building a supportive network that acknowledges the challenges of parenthood and equips parents with the tools and confidence to thrive.</p>



<p>“I think it equips us to create better futures for our children; I think it makes us healthier. I think that the ripple effect from connecting with other parents and getting support when you need it is immeasurable. It makes you a better employee. It makes you a better spouse, parent, friend. I think that it just enriches our lives … just like parenting does, but it just makes you level up.” said Anne Helms. </p>



<h2 class="wp-block-heading" id="h-action-steps-for-parents-how-to-break-the-loneliness-cycle">Action steps for parents: How to break the loneliness cycle</h2>



<p>If you're feeling the weight of parental isolation, taking action can make a huge difference. Here's how to break the cycle and start connecting:</p>



<h3 class="wp-block-heading" id="h-think-outside-the-box">Think outside the box </h3>



<p>"Parenting groups" might be the first thing that comes to mind, but don't limit yourself! </p>



<p>Consider your interests and look for communities around those. Do you enjoy reading? Join a book club. Interested in fitness? Check out parent-and-child exercise classes. Love a particular sport? </p>



<p>Seek out recreational leagues where parents can connect on the sidelines. The key is finding places with built-in opportunities for interaction.</p>



<h3 class="wp-block-heading" id="h-be-brave-take-the-initiative">Be brave, take the initiative</h3>



<p>It might feel intimidating to reach out to new people, but remember that other parents might be feeling just as lonely. Schedule a playdate with that mom from daycare you haven't gotten to know yet. </p>



<p>Strike up a conversation with another parent at the park. These small steps matter and your vulnerability can encourage others to connect as well.</p>



<h3 class="wp-block-heading" id="h-don-t-forget-about-yourself">Don't forget about yourself</h3>



<p>Self-care isn't just a buzzword; it's a necessity. Even 10 minutes of quiet time, a relaxing bath, or a walk in nature can make a huge difference in how you cope with stress. When you feel less overwhelmed, you have more energy to invest in building connections with others.</p>



<p>“Parenting can feel very lonely at times, but it will be easier if you have people around who can support you. It can be hard to start seeking out connections because, to some degree, you will have to be vulnerable and, sometimes, it will take time and effort. But just take the first step,” explained Gawlik.</p>



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Parents often feel lonely and burnt out from parenting demands

Are you a parent who sometimes feels lonely, isolated, and...


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<p>Earth from Space: Danube Delta Today&#8217;s <strong>Video of the Day</strong> from the <a href="https://www.esa.int/">European Space Agency</a> features the second largest river delta in Europe, the Danube Delta. </p>



<p>According to ESA, the Danube Delta covers an area of 4,300 square kilometers and is known for its abundance of birdlife, as it hosts more than 300 species of birds as well as 45 species of freshwater fish in its numerous lakes and marshes. The Danube Delta had long been on my travel list. It seemed so far removed from the other parts of Romania and a place I could go to for a relaxing holiday. The dynamic, relatively wild ecosystem with a rich diversity of wetland habitats, as well as numerous lakes, ponds and marshes</p>



<p>From the Black Forest mountains, the Danube River passes through 10 countries: Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Romania, Moldova and Ukraine. The Danube Delta, the largest river delta wetland in <a href="https://www.earth.com/video/the-northern-european-region-of-lapland/">europe </a>has become one of the finest, wildest, best-protected and most famous wildlife areas of the whole continent. </p>



<p>The unique ecosystems of the Danube Delta consists of a labyrinthine network of river channels, shallow bays and hundreds of lakes. Danube Delta is the second largest river delta in Europe, after the Volga Delta. The northern part is situated in Ukraine. The area is mostly covered by wetlands and water.   The area is mostly covered by wetlands and water flowing  into the Black Sea. </p>



<p><em>Video Credit: ESA&nbsp;</em></p>



<p><em>&#8211;</em><em>&#8212;</em></p>



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