NASA's Curiosity rover finds ancient waves on Mars
A NASA rover exploring the foothills of a Martian mountain has found rippled rocks that offer scientists the clearest evidence yet of ancient water waves on the red planet.
Curiosity, a car-sized robot that has been rumbling about Mars for a decade, snapped photos of the peculiar geology in mid-December (Opens in a new tab). The rocks are like the wavy patterns one might find when the tide rolls back the ocean from a beach, exposing shaky tracks on the temporarily exposed sand.
Mission scientists say waves of water lapping the surface of a shallow lake created these ridges perhaps billions of years ago. The movement above stirred up sediment from below, they suspect, and formed the combed texture.
https://mashable.com/video/nasa-curiosity-rover-mars-ancient-waves NASA's Curiosity rover finds ancient waves on Mars