Unidentified flying object

:UFO redirects here. For other uses, see UFO (disambiguation).

Related Topics:
UFO - UFO (disambiguation)

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A UFO or unidentified flying object in the original, literal sense is any airborne object or optical phenomenon, detected visually or by radar, whose nature is not readily known. Interest in these objects stems from arguments that some of them display anomalous characteristiscs, especially the continued speculation that some of them may be the products of extraterrestrial intelligence.

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Perhaps the best scientifically accepted definition of a UFO was provided by the late astronomer Dr. J. Allen Hynek: "A UFO is the reported perception of an object or light seen in the sky or upon the land the appearance, trajectory, and general dynamic and luminescent behaviour of which do not suggest a logical, conventional explanation and which is not only mystifying to the original percipients but remains unidentified after close scrutiny of all available evidence by persons who are technically capable of making a common sense identification, if one is possible."

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