New scans reveal hidden monuments of Stonehenge

The startling results of a new survey include 17 previously unknown monuments and dozens of burial mounds surrounding Stonehenge.

Craters have appeared on two glaciers in Iceland

The recent volcano eruptions in Iceland have created enormous circular depressions in two of the country’s glaciers.

What’s the source of a mysterious ozone-depleting chemical?

The Montreal Protocol put the brakes on ozone-depleting chemicals 30 years ago. But one compound is still abundant in Earth’s atmosphere. Where's it coming from?

California blue whales rebound from whaling

In a conservation success story, the number of California blue whales has rebounded to near historical levels after being hunted to near extinction.

Today is the first-ever World Shorebirds Day

Saturday, September 6, 2014, is the first World Shorebird Day. How to participate, here.

Researchers discover remains of colossal 65-ton dinosaur

Researchers have uncovered a 77-million year old, plant eating, super-massive Titanosaur. The huge animal weighed as much as a herd of elephants.

Lifeform of the week: Hoatzin

Physiologically and evolutionarily, the hoatzin is a fascinating bird. Just hold your nose when you're near it.

U.S. Southwest may face mega-drought this century

With ongoing climate change, the long view of future drought risk in the U.S. Southwest is not a pretty picture, say scientists.

What if you could see the sound of a nightingale?

Australian multimedia artist Andy Thomas creates 3D animations of bird songs. He calls them “audio life forms.”

At Iceland volcano, a white plume rises from the lava fountains

Observers around the world are watching the Bárðarbunga volcano in Iceland. Read about four likely scenarios for what might happen next.

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