New images from the Mars Express spacecraft show ancient volcanic ash spreading across the Red Planet.

The South Asian summer monsoon sustains billions of people today. For a long time, the prevailing scientific view has held ...

Eastern Africa's Turkana Rift is both a hotbed for fossil discoveries of our earliest ancestors and a literal hotbed of ...

Decoded cuneiform tablets reveal early societies’ magic, politics, and bureaucracy, including rare rituals, king lists, and ...

A remarkably preserved, mummified reptile from 289 million years ago is rewriting what we know about how animals first ...