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 ...

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

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 ...

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).

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 ...

A year and a half after the end of its mission, NASA’s InSight Mars lander may have just helped scientists find enough water to fill an ocean. Deep beneath NASA’s InSight lander (RIP InSight ...

New research suggests that Mars may be drenched beneath its surface with enough water, trapped in tiny cracks and pores of rock, to form a global ocean. According to the findings released Monday ...

If InSight’s location at Elysium Planitia near Mars’ equator is representative of the rest of the red planet, the underground water would be enough to fill a global ocean a mile or so (1 ...

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 ...