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Watch NASA's Unexplained Files Season 3 Episode 5 Online

  • 8.1/10
  • COUNTRIES: United States of America
  • Subtitles: English

Recently discovered documents reveal NASA's secret plan B for failure of the first moon landing, a Soyuz capsule carrying astronaut Peggy Whitson back to Earth vanishes without explanation and NASA’s Cassini mission unravels a three hundred year old.