List of reported UFO sightings

This is a list of notable reported sightings of unidentified flying objects (UFOs) some of which include related claims of close encounters of the second or third kind or alien abduction. UFOs are generally considered to include any perceived aerial phenomenon that cannot be immediately identified or explained. Upon investigation, most UFOs are identified as known objects or atmospheric phenomena, while a small number remain unexplained. UFOs have been referred to using a range of terms including the more specific "flying saucer" and the more general term "unidentified anomalous phenomena" (UAP). "UAP" is sometimes used to avoid cultural associations with UFO conspiracy theories.