For decades, the search for life on Mars has been a story of hints and maybes, of chemical curiosities that stopped just ...

New research reveals that ancient Mars once hosted vast river drainage systems comparable in scale to some of Earth’s major ...

For the first time, scientists have mapped vast, continent-scale river drainage systems on Mars — ancient networks that may ...

The search for life on Mars dates back about five decades, and a Sept. 10 announcement marks perhaps the most dramatic advancement yet. The news: NASA's Perseverance rover had found potential signs of ...

Long before Mars turned into the frozen desert you see today, water shaped its surface in dramatic ways. Rivers cut through ...

An unusual new rock collection discovered by NASA's Perseverance Mars rover suggests the Red Planet's ancient past was wet ...

New laboratory studies could shed light on a rock containing potential signs of alien life that’s stranded on Mars ...

A recent study spotted water carved cave openings in Mars Hebrus Valles region, hinting at sheltered places where signs of ancient microbes could survive.

A mudstone sample from Jezero Crater shows textures and minerals that on Earth often form through microbial activity. Scientists caution that nonbiological processes could also explain the features, ...

INDIANAPOLIS — Roger Wiens has been a Mars explorer since he was 11 years old. He grew up as a kid looking through a telescope at The Red Planet with his brother and sketching its features. “That was ...