Is there water on Mars? Scientists using archive ... the entire planet in an ocean about a mile deep. Actual surface oceans on Mars are thought to have disappeared more than three billion years ...

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

Scientists know that millions of years ago, Mars was covered in oceans, but the planet lost its water over time and now has virtually no liquid water on its surface. Now, though, researchers have ...

Scientists have found evidence of enough liquid water on Mars to cover the entire planet with an ocean a mile deep, according to new research published Monday, and which scientists said could ...

But that wet period ended more than 3 billion years ago, after Mars lost its atmosphere. Planetary scientists on Earth have sent many probes and landers to the planet to find out what happened to that ...

Water has been detected on Mars that could harbor life 12 miles beneath the surface, according to new research. Seismic data from NASA's Insight Lander indicates deep, porous rock filled with "oceans" ...

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

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

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

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

When you buy through links on our articles, Future and its syndication partners may earn a commission. Enough water to cover the surface of Mars has been discovered within the crust of the Red ...

Mars may be drenched beneath its surface, with enough water hiding in the cracks of underground rocks to form a global ocean, new research suggests. The findings released this week are based on ...