What caused this unusual looking crater floor on Mars? Appearing at first glance to resemble the human brain , the natural phenomena that created the unusual texture on the floor of this Martian impact crater are currently under investigation. The light colored region surrounding the brain-textured region is likely sand dunes sculpted by winds . The Mars Global Surveyor robot spacecraft that has been orbiting Mars since 1997 took the above image . Meanwhile, down on the surface, robots Spirit and Opportunity continue to roll, inspecting landscape , rocks , and soil for clues to the ancient watery past of the red planet . Humorously, this brain-terrain on Mars spans about a kilometer, making it just about the right size to fit inside the rock formation once dubbed the Face on Mars .
Media Credits & Attribution
Credit: Malin Space Science Systems , MOC , MGS , JPL , NASA