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

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 ...

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 ...

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

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 ...

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

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

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

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 ...

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 ...