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Watch NASA's Unexplained Files Season 5 Episode 3 Online

  • 7/10
  • COUNTRIES: United States of America,United Kingdom,India
  • Subtitles: English

Two suns are photographed in the Indonesia sky -- a trick of the light or a sighting of our Sun's evil twin? Scientists are baffled by ghostly swirls on the Moon's surface. An astronaut disappears during his return to Earth.