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

Mars, now a dusty world of rusted rock and thin air, once carried enough water to transform its face into something far more ...

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

Using images from cameras on Mars orbiters, an international research team has discovered structures on Mars that are very ...

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

New climate modeling suggests that small lakes on ancient Mars could have stayed liquid for decades, even in a generally cold environment. Small lakes on early Mars may have stayed in liquid form for ...

New research suggests Mars was once a blue planet, as scientists identify river deltas and signs of a vast ancient ocean on ...

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

Perseverance rover found a rock on Mars named Phippsaksla with so much iron and nickel that it could be a meteorite.

CAPE CANAVERAL, Fla. — NASA says a rock sample collected by its Perseverance Mars rover in the Jezero Crater may contain evidence of ancient microbial life on Mars. The rover discovered a rock ...