There are literal oceans' worth of liquid water hiding out on Mars. There's just one big problem. That water is actually in ...

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 ...

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

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 ...

It is understood that oceans disappeared from the surface ... They say that the water frozen in Mars' polar ice caps can't account for it all - as well as when it happened, and whether life ...

NASA's InSight lander may have ended its mission a year and a half ago, but data from the robot's seismograph has revealed what appears be an ocean's worth of liquid water trapped under Mars' surface.

The findings, published Aug. 12 in Proceedings of the National Academy of Sciences, hint at sufficient water to fill oceans and globally cover Mars to a depth of over a mile (1 to 2 kilometers).

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

"We've now known for many decades that water existed on Mars on its surface in the forms of rivers and lakes, and oceans and salty seas. That always lends possibility to life on that planet.

lakes and possibly oceans, according to the lead scientist, Vashan Wright of UC San Diego’s Scripps Institution of Oceanography. Just because water still may be sloshing around inside Mars does ...