"Shorelines are great locations to look for evidence of past life." Today, Mars is a chilly desert of rock and dust — but 4 billion years ago, the planet had rivers, lakes and even oceans with sandy ...

"We found evidence for wind, waves, no shortage of sand—a proper, vacation-style beach," said geologist Benjamin Cardenas.

A hypothetical picture of Mars 3.6 billion years ago, when an ocean may have covered nearly half the planet. The blue areas show the depth of the ocean filled to the shoreline level of the ancient, ...

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 ...

Evidence suggests Mars once had an ancient ocean, with data from China's Zhurong rover revealing coastal deposits beneath the surface.

A hypothetical picture of Mars 3.6 billion years ago, when an ocean may have covered nearly half the planet. The blue areas show the depth of the ocean filled to the shoreline level of the ancient ...

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 ...

Photo released on June 11, 2021 by the China National Space Administration shows a selfie of China's first Mars rover Zhurong with the landing platform. [Photo/CNSA via Xinhua] BEIJING -- Chinese ...

Photo: Map of Utopia Planitia, Zhurong Mars rover landing site, and four possible ancient shorelines. Photo: Courtesy of the Aerospace Information Research Institute of Chinese Ac ...

Many scientists think that Mars used to have an ocean that covered up to a third of the planet, but the theory is still debated. New data from China's Zhurong rover strengthens the case for an ...