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History|242407|1708636227961|Project Blue Book|UFO Secrets Hidden Inside Hangar 18|S2|E8
HISTORY
Follow
3/11/2020
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."
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📺
TV
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2:02
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