The strongest hints yet that Mars once hosted living microbes are no longer theoretical models or ambiguous chemistry. They are etched into a single, oddly speckled rock in an ancient riverbed, where ...

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

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

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.

"The structures that we were able to identify in the images are clearly the mouth of a river into an ocean." The post ...

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

New findings from NASA's Perseverance rover have revealed evidence of wave-formed beaches and rocks altered by subsurface ...

Bright white rocks spotted by NASA’s Perseverance rover are rewriting what we thought we knew about ancient Mars. These ...

The Perseverance rover has come across light-toned rocks at Jezero Crater. These inconspicuous rocks are aluminum-rich, and ...

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

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

Was there ever life on Mars? Planetary scientists think there could have been but there hasn’t been any direct evidence. After years of roaming... NASA just dropped the most convincing evidence for ...