Here is the world famous Mars Rat photographed by the Curiosity Rover. Some say it also looks like a guinea pig. The Mars Rat was photographed on Mars by the.\n\nHere is a UFO photographed by the Mars Spirit Rover. The UFO is shaped like a rocket or missile and leaves a trail behind it. This photo was discovered a whi.\n\nIs that a rat on Mars? A photo from the mast camera on NASA's Curiosity rover reveals the dusty orange