China’s Zhurong rover finds evidence resembling shoreline of large ocean that may have existed 3.5bn to 4bn years ago

Mars may once have been home to sandy beaches, new ground-penetrating radar data suggests.

The radar data from China’s Zhurong rover has revealed buried beneath the Martian surface evidence of what look like sandy beaches from the shoreline of a large ocean that may have existed long ago on the planet’s northern plains.