Seismic readings of the interior of Mars strongly suggest large quantities of water buried 6 to 12 miles underground.

In his lecture, Levine noted, the United States is planning a human mission to Mars that may begin as early as 2035. The ...

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

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

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 ...

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.

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 ...

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 ...

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 ...

What drives us to send probes throughout the solar system and rovers and landers to Mars? It's not cheap, and it's not easy.

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 ...