Project Blue Book: UFO Secrets Hidden Inside Hangar 18 (Season 2) | History

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Project Blue Book investigates reports of a secret hangar on a military air base that has been used to research extraterrestrial UFOs in this clip from Season 2, "What Lies Beneath". #ProjectBlueBook
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HISTORY’s upcoming new drama series ‘Project Blue Book’ is based on the true, top-secret investigations into Unidentified Flying Objects (UFOs) and related phenomena conducted by the United States Air Force from 1952 to 1969.

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