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, ...

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

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

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

"These dense structures could be volcanic in origin or could be compacted material due to ancient impacts," a researcher said.

Flexural isostasy states that this massive region should force the planet's surface downward. But the reverse is true.

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

Scientists explore Mars water loss, tracing hydrogen and deuterium escape with advanced space telescopes like MAVEN and ...

Based on MAVEN's previous observations, Mars has lost enough water to space to form a GEL of between tens and hundreds of meters deep. Combined with the huge amount of water recently found buried ...