People claim that there seems to be an unusual, circular object on a photograph of Mars taken by NASA, indicating a possible alien sighting.

NASA's Mars Curiosity rover seemed to have accidentally spotted something strange in one of its photos which look like a "crashed flying saucer". Initial inspection said that it is just a massive odd rock, but enthusiasts want the space agency to do close examinations to prove that it may actually be an alien object.

UFO hunters continuously examine a number of photos taken by NASA to prove that "odd objects" give other planets the possible evidence of life on Earth. Streetcap1 is one of the leading UFO spotters in social media and uploads their 'evidence' on Youtube. Even though they wanted to call this object UFO, it is not possible since it is not "flying" and simply standing atop a hill on the Red planet. They find it odd that a 'window' is sitting peacefully in that area, as reported by Inquisitr.

Looks like a rock formation to me. ;-) To read more and view the video, click here.