New research reveals ancient ripples on Mars, providing compelling evidence of long-lost lakes that once existed 3.7 billion ...

Ancient ripples suggest a warmer, wetter past for the Red Planet that supported open water on its surface.

The car-sized Curiosity rover has spotted evidence of once quite hospitable environs on Mars.

NASA's Rover found ripples in Martian rock that resemble the wave patterns on a sandy lake bed on Earth. The ripples could ...

Now, NASA’s Curiosity rover has identified two sets of ancient wave ripples on Mars, suggesting the presence of standing bodies of liquid water billions of years ago. Curiosity discovered the ...

"The shape of the ripples could only have been formed under water that was open to the atmosphere and acted upon by wind," says postdoctoral scholar Claire Mondro, the study's first author.