An Alien Flying Object (AFO) was a term first coined in 1969 by scientist William Hartmann in a paper presented to a symposium on unidentified flying objects sponsored by the American Association for the Advancement of Science to denote a vehicle constructed by alien intelligence. His intention in creating the expression was to reduce the confusion incurred by those who use the term UFO to signify an extraterrestrial spacecraft. However, AFO and Alien flying object have not become a widely used expression in UFOlogical terminology.

See Also

Unidentified Flying Object

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