Official Website: https://www.sky.com/watch/title/series/53060c21-405a-495a-87a4-fc5711e9013c/evidence-of-the-unexplained-53060c21-405a-495a-87a4-fc5711e9013c
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Authorities all over the world say UFOs are real, but what are they, and are they a threat? This series examines the best and latest evidence caught on camera.
