Project Sign

E987902 UNEXPLORED

Project Sign was the U.S. Air Force’s first official program to investigate and evaluate reports of unidentified flying objects (UFOs) in the late 1940s.

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All labels observed (1)

Label	Occurrences
Project Sign canonical	1

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

J. Allen Hynek → workedOn → Project Sign ⓘ