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

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

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

Ancient Mars may have been a beach paradise 4 billion years ago. A new study published in Proceedings of the National Academy of Sciences reports that the Chinese Mars rover Zhurong detected ...

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Ian Randall is Newsweek's Deputy Science Editor, based in Royston, U.K. His focus is reporting on science and health. He has covered archeology, geology, and physics extensively. Ian joined ...

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