UFO fans have claimed of alien sightings on Mars and have blamed NASA for not unveiling the truth. But a NASA scientist working on Mars rover project has affirmed that people who finding such sightings may have pareidolia.

The photos were taken by Curiosity Rover that included a levitating sphere, space crab and Star Destroyer. These photos started a debate among alien hunters that many objects looked like UFOs. They even blamed NASA for hiding the proof of alien life from the public.

With passage of time, the Curiosity Rover images have become a topic of discussion among alien hunters. The UFO hunters said that they have found an alien woman who has been watching the rover. NASA scientist Aswhin Vasavada, working on the Mars rover project, have claimed these people to be having pareidolia, a psychological phenomenon in which some people hear or view images and sounds that in reality do not exist.

NASA has also cleared that it is not trying to hide any evidence of alien life from public. "There is no group that would be happier to see such a thing than the 500 scientists around the world who work on this Curiosity rover. So far we haven't seen anything", said Vasavada.

Till the time UFO sightings are not proved by NASA and other agencies, claims of UFO sightings on Mars will be considered as nothing, but illusions.