Aliens are actually "demons" sent by evil powers.
Religious scholars claim that there are several parallels between UFO sightings and "demonic encounters" as they seek to explain to worshippers why there is no suggestion of alien existence in religious texts.
Catholic theologian Dr. Paul Thigpen said that NASA's probe into UFOs suggests that officials "know a lot more than they are telling".
He said: "The diabolical hypothesis - that they are demons - best accounts for some reports, especially some of the so-called 'alien abductors' that demonstrate clear parallels with what the Church knows as demonic encounters."
The theory was also proposed by the late Archbishop Chrysosostomos of Etna who said "ultimately one cannot escape the conclusion" that alien abductors are "demons or phantoms created by demonic power".