Meteorites and marsquakes hint at an underground ocean of liquid water on the red planet

‘Marsquakes’ point to liquid water in red planet’s crust, study finds

Scientists using data from Nasa's InSight lander find mysterious zone they say is best explained by a layer of water-saturated rock Read full story

Mars' rust suggests it was once wet — and its seas frigid

A beach day on early Mars would not have been a pleasant getaway. A new look at the Red Planet has turned up a possible ancient coastline in its northern hemisphere. A second study hints that the mineral giving Mars its current rosy hue likely needed frigid water to form. “We can imagine an early Mars with abundant liquid water,” says Alberto Fairén. This astrobiologist was not involved in either study. He works at the Center for Astrobiology in…

China-led study finds sign of liquid water in Mars

Scientists using data from Nasa’s InSight lander find mysterious zone they say is best explained by a layer of water-saturated rock.

Mars may have vast underground oceans

: Chinese and Australian boffins ask what else could be slowing down seismic waves as they pass through the Red Planet?

Seismic Signals Hint at Presence of Liquid Water Deep Beneath the Martian Surface

New seismic data from NASA’s InSight lander suggests that liquid water may still exist beneath the Martian surface, a promising development for future human exploration and settlement. An international team of researchers from China, Australia, and Italy collaborated on the new study, which utilized NASA’s InSight seismometer data to probe the Martian interior with unprecedented resolution. Between Mars’ initial formation and roughly 3 billion y…

Scientists find hint of hidden liquid water ocean deep below Mars' surface

By studying seismic waves, researchers have found a layer deep beneath the surface of Mars that could contain enough liquid water to flood the planet with an ocean thousands of feet deep.