Small lakes on ancient Mars may have remained liquid for decades, even with average air temperatures well below freezing.

Mars once had sprawling river systems that rivaled major watersheds on Earth, and scientists have now identified the biggest ...

Ancient Mars is starting to look less like a scattered patchwork of dried-up valleys and more like a planet once ruled by continent-scale rivers. For the first time, scientists have traced giant ...

Mars’ Jezero Crater holds signs of ancient water and strange mineral reactions, some linked with organic compounds. With Perseverance’s samples and AI-refined mineral maps, scientists are closing in ...

Ancient Mars is coming into sharper focus as a planet laced with rivers, deltas and vast drainage basins, and that new map of its watery past is rapidly reshaping where scientists intend to look for ...

NASA’s Perseverance rover found possible signs of ancient life in rocks on Mars, keeping scientists up at night. NASA's Perseverance Mars rover took this selfie on July 23, 2024. To the left of the ...