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One The Legend of Flying Saucers
Two Probability of Contact with
Three Modern UFO Reports and Their Reliability
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aerial Aime Michel Air Force aircraft Aku-Aku altitude analysis appeared astronomers August ball lightning balloon behavior bolide bright cigar Ciry-le-Noble classification cloud concerning contactees craft described descriptions disappeared disk Dong Hoi earth entities existence extraterrestrial fact fantastic Fatima feet files flying object Flying Saucer Review flying saucers foo-fighters France French ground groups hovering human hypotheses incident intelligence interest interpretation investigation L'Astronomie land later Levelland light light-years luminous maneuvers Martian meters Michel miles minutes Montceau-les-Mines moon NICAP night object was seen observed October official Orgueil meteorite Paris-Presse parsecs phenomena physical pilots planet possible present races reliable Ruppelt scientific scientists seems shape sightings similar space travel stars strange suddenly theory tion took place U.S. Air U.S. Air Force UFO activity UFO phenomenon UFO problem UFO reports UFO's unidentified unidentified flying objects wave witnesses