Last year, NASA’s Curiosity rover made a fascinating discovery after boring into a suspected ancient lake bed on Mars: ...

Organic compounds discovered on the Red Planet cannot be fully explained by non-biological sources, say astrobiologists.

NASA’s rover Perseverance spent nearly a year exploring the rim of a crater believed to have held a huge lake.

Mars has long tempted scientists with hints of chemistry that might once have supported life. Now a NASA-led study argues that the complex organic molecules hidden in ancient Martian rocks are very ...

NASA's Perseverance rover discovered rocks on Mars, providing new evidence the red planet was once a wet, habitable world that could support life.

CAPE CANAVERAL, Fla. (AP) — Ancient Mars may have had an environment capable of harboring an underground world teeming with microscopic organisms, French scientists reported Monday. But if they ...

Bright white rocks found by NASA’s Perseverance rover hint at ancient Martian rain lasting millions of years, raising new questions about how wet Mars once was and what those conditions might mean.

Light-colored rocks scattered across Mars have become a quiet clue to a louder story about the planet’s past. NASA’s Perseverance rover keeps finding pale pebbles, cobbles and even small boulders ...

The discovery suggests that parts of Mars may once have supported tropical-like climates, complete with heavy, sustained rainfall.