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

Rapid temperature flips from hot to cold extremes have increased across the world, according to a new study published in ...

A new analysis by UC Boulder geologists suggests the ancient Mars landscape was formed by falling precipitation, including ...

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