Perseverance's drives over the last few weeks have doubled back several times. Why such an unconventional route? Team ...

High-pressure experiments generated the first direct observation of plastic ice, which has qualities of both crystalline ice and liquid water.

Curiosity Rover Reveals Mars Had Liquid Water Rippling Patterns Suggest Ancient Martian Lakes Findings Could Extend Mars' Habitability Window ...

Astrophysicists have been grappling with the question of how water arrived on our young planet for decades. One of the ...

NASA's Curiosity rover has found evidence of water on ancient Mars with "rippled textures" and "landslide debris" in the foothills of Mount Sharp. Credit: NASA/JPL-Caltech ...