The strongest hints yet that Mars once hosted living microbes are no longer theoretical models or ambiguous chemistry. They ...

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

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

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 ...

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

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

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

Bright white rocks. Scattered across the rusty red plains of Mars. NASA’s Perseverance rover spotted them in Jezero crater ...

“The presence of liquid water [on Mars] is a broad topic that includes rains, rivers, lakes, as well as oceans,” says Ezat ...

NASA's Perseverance robot, depicted here landing on the Martian dunes, used its cutting-edge cameras to image what could be the first evidence of life ever detected on Mars, opening the possibility ...