Unidentified flying object (UFO), History, Sightings, & Facts
Par un écrivain mystérieux
Description
Unidentified flying object (UFO), any aerial object or optical phenomenon not readily identifiable to the observer. UFOs became a major subject of interest following the development of rocketry after World War II and were thought by some researchers to be intelligent extraterrestrial life visiting Earth.
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UFO Sightings Chart, Description: Unidentified Flying Objec…
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Five Movies Worth Watching About UFOs
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How the U.S. Air Force Investigated UFOs During the Cold War
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UFO Sightings: Where to Read the Pentagon's Declassified Info - CNET
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What exactly are UFOs?, Articles
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Will NASA's UFO Panel Reveal Any Extraterrestrial Secrets?
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UFOs: Man-Made, Made Up, and Unknown – Pieces of History
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The Paris Review - More UFOs Than Ever Before - The Paris Review
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UNIDENTIFIED FLYING OBJECT (UFO): History, sightings , facts and lies about UFOs eBook : bob, peters: Kindle Store
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UFO Sightings in Arkansas
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10 Famous American UFO Reports: Fact or Fiction?
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Brief history of UFO sightings
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Unidentified flying object - Wikipedia
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What Is a UFO? The U.S. Shot down Three Mysterious Objects as Interest and Concern Increase Over Unidentified Craft - Government Executive
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UFOs in America: A short history of aliens and sightings
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