Researchers have identified what they believe could be oceans' worth of water on Mars. There's just one snag: it's deep ...

Running those numbers, Clarke and his co-authors estimate that of the mile-deep layer of water that may once have been the ...

A new study suggests Mars may be drenched beneath its surface, with enough water hiding in the cracks of underground rocks to ...

MARS may be drenched beneath its surface, with enough water hiding in the cracks of underground rocks to form a global ocean, ...

Stunning new images from the ExoMars orbiter reveal ancient salt deposits on Mars, even forming a smiley face.

Newly released images of Mars reveal a "smiley" salt deposit on the Red Planet's surface. A related study suggests that ...

The European Space Agency has found a “smiley” face on the surface of Mars — and the joy-sparking pattern could be a sign of ...

A new analysis of Mars' gravitational field has revealed hidden structures buried beneath the remains of an ancient ocean.

Studies of gravity variations at Mars have revealed dense, large-scale structures hidden beneath the sediment layers of a ...

What did Mars look like billions of years ago? This is what a recent study presented at the Europlanet Science Congress (EPSC ...

Scientists believe that this salt deposit may hold clues to the possibility of ancient life on Mars. Billions of years ago, ...

Scientists suggest the salt deposits could house ancient bacteria from an era when Mars may have had an environment conducive ...