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.
Mark Bazelei , Gai Uolters , Tony McMahon , Linda Rodriguez-McRobbie , Joyce Ohajah , Sascha Auerbach , Luis Elizondo , Thomas Gadinger , Jayde Lovell , Karen Bellinger
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