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.

What is the blue hour?

The blue hour - when the sun is some distance below the horizon, when the sky is deep blue and the landscape is suffused with bluish light - is a good time to take photos.

Snowfall ahead in a warmer world, says study

An MIT study finds big snowstorms will still occur in the Northern Hemisphere despite global warming.

Report: Summer ozone to get much worse in next 35 years

A new report warns of a 70% increase in the number of days with unhealthy summertime ozone levels by the year 2050.

Yellowstone supervolcano would cover North America in ash

It's highly unlikely a supervolcano will erupt at Yellowstone National Park. But, says a new study, if one did, volcanic ash would cover North America.

Testing a space rover under Alaskan ice

Scientists test a device on an Alaska glacier that could be used to explore an icy moon of Jupiter.