Reconciling space and time has been one of the most...

In 1859, Darwin proposed that evolution worked slowly - even...

Earth’s first continents were supposed to be forever. Their deep...

At first glance, sea cucumbers seem like passive creatures. They...

In theory, planting trees can wipe away the carbon cost...

As birth rates continue to decline across the United States,...

Seventeen thousand years ago, a family carried an ailing toddler...

Clouds help cool the Earth by reflecting sunlight. But now,...

For years, people have chosen glass bottles for their beverages,...

For over 100 years, the North Atlantic has hosted an...

Dogs did not dash into South America with the first...