Newslink: 'Foreign Object' on Mars Spotted by Curiosity Rover Is Just a Rock (Photo)

On Monday (Aug. 13), Curiosity photographed an odd, flat object that mission team members initially thought might have fallen off the car-size robot. But the "debris" turned out to be a Red Planet rock.

https://www.space.com/41535-mars-rover-curiosity-strange-object-photo.html