UFO hunters say Nasa rover spotted a robot leg on Mars
UFO hunters say they have spotted a robot leg on Mars.
CNN reports that the claim is based on a photo taken by NASA's Curiosity rover in early August.
It shows what could be the lower part of the robot limb. Another theory is that the object is a piece from a broken statue.
Nasa is unlikely to agree with any of those suggestions. The generally accepted scientific explanation for such sightings is pareidolia, the tendency to interpret a vague stimulus as something known to the observer.