Ground-penetrating radar data obtained by China's Zhurong rover has revealed buried beneath the Martian surface evidence of ...

Mars wasn't always the dusty red desert we know today. Billions of years ago, waves may have crashed against sandy beaches ...

Beach day on the Red Planet? Learn more about how Mars may have had a massive ocean that created unique beaches.

Submarines' top speeds are different when they're underwater than when they're cruising on the surface -- and not always in ...