Curiosity finds clearest evidence yet for water on Mars
The Mars Curiosity rover has discovered what NASA said is its clearest evidence yet that the red planet used to be anything but dusty and dry - and it found that evidence in a place it didn't expect.
The discovery comes in the form of rocks covered in rippled patterns that Curiosity scientists discovered in photos the rover snapped in December of an area of incredibly dense, hard rock known as "Marker Band Valley."
Those ripples, NASA said, were formed as waves lapped the shores of an ancient shallow lake in the area. "Billions of years ago, waves on the surface … stirred up sediment at the lake bottom, over time creating rippled textures left in rock." Read More..