Do UFOs Exist? I have gathered many sources and have come to the conclusion that UFOs do exist. Sightings of unusual aerial phenomena date back to ancient times, but only after 1947, have UFOs been widely discussed because of publication world wide. Many things support this concept such as sightings, crop circles, encounters, and abductions. At least 90% of UFO sightings can be identified as conventional objects, Although time consuming investigations are necessary for such identification. The objects most often mistaken for UFOs are bright planets and stars, peculiar clouds, birds, aircraft, balloons, kites, aerial flares, meteors and satellites. Bet