Project Blue Book Unknown 不明飞行物档案：终极解密 1 1 3089112 9.0 1 0 During the Cold War Project Blue Book came into being – aimed at gathering and analysing UFO observations. To this day, many cases still raise unanswered questions. 45 https://image.tmdb.org/t/p/original/vGyVT7O65ys6mVCkk8KO9F6zTZi.jpg 2021-01-19 2021-01-19 false 0 Sky History Petr Vachler Vojtech Filcev Petr Vachler Robert Polo Self - Narrator (voice) https://www.themoviedb.org/person/3260648 3260648 Nick Pope Self - UFO Expert https://image.tmdb.org/t/p/h632/XCQqVfg1Lt9AIa7TfKPpFeORqG.jpg https://www.themoviedb.org/person/2022163 GuestStar 2022163 Michael Salla Self - UFO Researcher https://image.tmdb.org/t/p/h632/yZEYWrmhkL84YKiAjkP8thUm51P.jpg https://www.themoviedb.org/person/2164604 GuestStar 2164604 Richard Dolan Self - UFO Researcher https://image.tmdb.org/t/p/h632/snuf9pIowBrGhARbFqwUiicjyhu.jpg https://www.themoviedb.org/person/3470349 GuestStar 3470349 2025-11-14 21:56:56 UNKNOWN NONE S01E01.strm Project Blue Book Unknown