The climate and early human societies were changing quickly during the fall of our closest evolutionary relative—and are big ...

If you've ever looked at Mars through a telescope, you probably noticed its two polar ice caps. The northern one is made ...

In a new study, researchers used remote cameras and data from GPS tracking collars to learn more about this vulnerable period ...

Scientists say small changes in the way the Earth orbits the sun hold the key in major global changes in climate, like ice ...

A stunning satellite image captures Greenland’s snow-covered winter landscape, where glaciers meet the sea. The coastline is ...