Unidentified flying object/Definition

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< Unidentified flying object
Revision as of 05:25, 10 January 2011 by imported>Peter Schmitt (rephrased and extended)
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https://en.citizendium.org/wiki/index.php?title=Unidentified_flying_object/Definition&printable=yes
A definition or brief description of Unidentified flying object.

(usually referred to as UFO) Any airborne object or phenomenon of unknown origin or nature, observed visually or by instruments; often linked with alleged but unproven claims of extraterrestial origin.

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