In the soft, wet light the lichens and moss on the tangled clumps of buffaloberry along the river were screaming green and ...

Valleys on Mars suggest the Red Planet was once covered in flowing water — but it's still a mystery how that could have been.

New research suggests ancient Mars may have been warm and wet, with rainfall or snowmelt carving its iconic valleys.

Around 10,000 years ago, as the last Ice Age drew to a close, the drifting of the continent of North America, and spreading ...

Around 10,000 years ago as the last Ice Age drew to a close, the drifting of the continent of North America, and spreading in ...

The steadily declining persistence of seasonal snow is a warning bell for an emerging water crisis,” according to the report ...

A new study from geologists at the University of Colorado Boulder paints this picture of a Red Planet that was relatively ...

Mars may once have had a relatively warm and wet climate conducive to flowing water, rain and snow, producing a terrain much ...

Rising global temperatures are driving the sharp decline in terrestrial water storage. This trend isn’t likely to change, scientists say.

Visit ancient Mars—a surprisingly temperate planet where snow or rain falls from the sky, and rivers rush down valleys to ...

We are on thin ice. Literally. Climate change has reached the mountain tops and is melting the ice — and fast. Consequently, ...

Greenland’s ice-covered landscape looks like an immovable block on satellite maps. Yet the story beneath its center suggests ...