This image from the right Mast Camera (Mastcam) of NASA's Mars rover Curiosity shows a scoop full of sand and dust lifted by the rover's first use of the scoop on its robotic arm. In the foreground, near the bottom of the image, a bright object is visible on the ground. NASA says a small bright object detected on Mars is likely a piece of plastic from the Curiosity rover. The six-wheel spacecraft captured an image of the puzzling object Monday, Oct. 8, 2012, after scooping up Martian sand and dust over the weekend. In a statement Tuesday, the space agency says the plastic bit that fell off the rover is "benign." While plans are continuing to positively identify it, NASA says it is not "Martian material." (AP Photo/NASA/JPL-Caltech/MSSS)
