UFO Mysteries That Defy Explanation | Unidentified: Inside America's UFO Investigation

From shocking military encounters to mysterious triangle-shaped craft and unexplained sightings over remote regions, revisit some of the most compelling UFO investigations ever uncovered. See more in this Unidentified: Inside America's UFO Investigation compilation. Ch1 0:00 - STUNNING ARTCTIC UFO...

27 min - Archaeology & Mysteries - HISTORY

More: UFOs documentaries

Read Deeper: UFOs

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4. The UFO experience by J. Allen Hynek - View on Amazon

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