[I] Introduction: What exactly is a U.F.O? Where do they come from? What do they want from us? Well, a UFO is an unusual airborne object that cannot be identified, even after an expert examination. 90 Percent of these reports are either Hoaxes, Conventional objects, or some poor person going insane. The other 10 percent is considered UFO enigma. [II] History: The data of the first UFO sighting is not known. Some researchers say that UFO sightings date back to ancient times. There is no evidence for this speculation, so it is just ....