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

Long thought of as a dry, barren world, Mars may once have shimmered with shades of blue. A new study reveals the discovery ...

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

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

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

New research has mapped 16 extensive, interlaced river systems on Mars, dating back approximately 3.7 billion years to the Early Hesperian Period. These large river systems, despite covering only ...

Scientists have identified eight mysterious water-shaped caves on Mars, unlike volcanic tunnels, raising fresh hopes these ...

Scientists suspect that the surface of Mars was once teeming with water, a lush oasis full of river systems and lakes — until a dramatic change in the planet’s magnetic field caused it to lose most of ...

CAPE CANAVERAL, Fla. — NASA’s Mars rover Perseverance has uncovered rocks in a dry river channel that may hold potential signs of ancient microscopic life, scientists reported Wednesday. They stressed ...

A long time ago, life left microscopic signatures on Mars — or did it? That's the question NASA scientists have worked for years to answer. On Wednesday, NASA researchers said the answer might be in a ...