Researchers have found new evidence for a massive subsurface ocean on Mars, again raising the possibility of microbial life.

Until now, only about a quarter of the seafloor has been mapped using ships with special sonar equipment. The rest has ...

Seismic readings of the interior of Mars strongly suggest large quantities of water buried 6 to 12 miles underground. Persuasive new evidence supporting the possibility of liquid water deep ...

On Earth, ocean tides and winds carry sediment toward ... would have formed at the Zhurong landing site in the distant past on Mars (left) and how long-term physical and chemical weathering ...

Mars – dusty, dry, and desert-clad – was once so rich in water it had not just lakes, but oceans, according to a new study. Observations using ground-penetrating radar have revealed ...

Their paper, titled "Ancient Ocean Coastal Deposits Imaged on Mars", details the discovery of multilayered, inclined sedimentary structures at depths of 10 to 35 meters beneath the surface.

The first thing most people think of when they consider Mars is ... of water in its distant past. “Mars once had liquid water on its surface in rivers, lakes and possibly oceans,” Dr. Michael ...

The discovery, they say, is the strongest evidence yet that Mars's northern lowlands once sported an ocean that covered a third of the planet's surface—and which could have provided a habitable ...

Many scientists think that Mars used to have an ocean that covered up to a third ... as well as looking at the shoreline from more distant locations. Graziella Caprarelli, a planetary scientist ...

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