The ocean floor is a vast scope on our planet that remains largely unexplored. Although oceans cover 71% of Earth, we have ...

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

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 ...

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 ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Mars may have once ...

Now it sounds like Mars was likely home to massive oceans as well, which would be "potentially habitable environments," as coauthor and University of California, Berkeley geophysicist Michael ...

Researchers have long believed that Mars had a vast ocean, and this new study supports and expands on that idea.“We think that this ocean may have connected to a system of underground lakes that ...

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 ...

Subsurface data from Mars suggests the planet may have once featured oceans and beaches similar to Earth’s, according to a new study published in Proceedings of the National Academy of Sciences.

They are currently analyzing additional data and developing a new study method that will allow not only the observation of atmospheric waves but also the wind fields of a distant Mars—one that ...