Script written by Shane O'Gorman.
Not all UFO sightings have been proven fake, which means there may be stories of REAL UFO sightings out there. The incident at the 2012 London Summer Olympics, the Warren Air Force Base UFO of the disappearance of Frederick Valentich all fall into the category of unexplained alien sightings – and we may never know what really happened. WatchMojo counts down ten alien sightings that have ever been explained.
Special thanks to our user Muppet_Face for suggesting this idea! Check out the voting page at WatchMojo.comsuggest/Top+10+UFO+Sightings+NOT+Proven+to+Be+Fake