Thin, seasonal ice may have protected ancient lakes on Mars, allowing liquid water to last for decades despite cold ...

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

In a quiet corner of an ancient riverbed on Mars, a speckled rock has pushed the search for extraterrestrial life into its ...

"Seeing ancient lake basins on Mars without clear evidence of thick, long-lasting ice made me question whether those lakes ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

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, ...

Long before Mars became the cold, dry world we see today, rain once fell across its surface. Water gathered in low-lying valleys and river channels ...

In an investigation to find out what sparked life on Earth, researchers have discovered that RNA formed through surprisingly ...

This morning NASA released data collected by the Curiosity Rover, which landed on Mars in August 2012, supporting the possibility of ancient life on Mars “A fundamental question for this mission is ...