London: An unmanned NASA Rover has captured images of a celestial object, believed to be a UFO, on Mars.
One of the internet users said that the unexplained shape photographed is just "something on the lens of the rover camera", while another said that it`s "just a weather balloon", the Mirror reported. However, some believe that it is an " Asteroid". The video of the bizarre celestial object, which looks like a spacecraft complete with vapour trail has been uploaded to YouTube by Ufologist Streetcap1 under the heading ` Mars ufo?`