A study by scientists at Penn State and NASA shows that intact biomolecules from dormant microbes break down much more slowly ...

Ancient shoreline features hint that water on Mars once formed a vast ocean.

Scientists have traced ancient Martian shorelines inside a giant canyon, revealing where a vast ocean once stood and why ...

The findings potentially solve the paradox of how liquid water seems to have persisted on Mars even when the climate grew too ...

For decades, the search for life on Mars has been a story of hints and maybes, of chemical curiosities that stopped just short of a clear biological signal. That changed this year when a single, ...

Recent discoveries have shed new light on the history of Mars, revealing evidence of ancient underground water that suggests the planet may have been habitable for longer than previously believed.

Are researchers searching in the wrong locations on Mars to find ancient life? This is what a recent study published in Astrobiology hopes to address as a team of researchers investigated searching in ...

The recent announcement that scientists have spotted what they believe to be evidence suggesting ancient life on Mars seemed like the latest in an endless cycle of tantalizing hints followed by pleas ...

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

NASA's plans for Mars sample return are effectively cancelled as part of a bill approved by the U.S. Congress, ending efforts ...

The recent announcement that scientists have spotted what they believe to be evidence suggesting ancient life on Mars seemed like the latest in an endless cycle of tantalizing hints followed by pleas ...