The moon seems to be a hotspot for alien sightings, at least that is what alien enthusiasts claim. It is believed that the moon is an extraterrestrial base and that aliens are designated there to monitor the earth or the universe as a whole.

Recently, a video showing fleet of UFOs leaving the moon went viral on the Internet. Believers and non believers, flocked on the comments section of the video posted by Geri Vigil.

Scot Warring of UFO Sightings Daily weighed in on the video and said that astronomers have long known that UFOs have been flying to and from the moon and even orbit the moon.

"Many Apollo astronauts have stated that they saw UFOs near on and near the moon, so maybe these objects are a form of protection from future Apollo missions landing on the moon. It may be owned by a species that's not so friendly about sharing."

In 1960s, NASA launched its Apollo program. Apollo was NASA's spaceflight program that resulted in American astronauts' making a total of 11 spaceflights and walking on the moon. Since the Apollo mission ended, men were never sent back to moon again. Most people speculate that this is because of the alien inhabitants of the moon.

In October, news about proof of alien base entrance on moon was found. According to the report published in Morning News USA, there exists a "Hollow Moon" theory which claims that the lunar surface is in fact just a shell hiding an alien superstructure underneath.

Moon's mean density is 3.34 times denser than water despite appearing solid on the surface, suggesting that it's not just a solid mass of rock.

Meanwhile, Mail suggests that it could be nothing more but an optical illusion caused by an out of focus lens causing strange figures to appear. The anomaly is called Chromatic Aberration which occurs when a lens is either unable to bring all wavelengths of color to the same focal plane.