NASA's Unexplained Files
Presenting firsthand accounts from NASA astronauts and scientists who have witnessed the mysterious, the impossible and the strange. Can these phenomena be explained through science and detective work?

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Season 3
  • {S}03.{E}15: Mystery Of The Invisible Planet
    Leaving Soon

    S03.E15: Mystery Of The Invisible Planet

    A probe mysteriously malfunctions as it enters deep space. Astronomers find evidence of an invisible planet in a distant solar system.
    Duration: 44 Min
    Watch Until: 02/06/2019
  • {S}03.{E}16: Mars' Deepest Secret

    S03.E16: Mars' Deepest Secret

    A malfunction on the ISS could poison its crew with a deadly gas. A startling image taken by a NASA probe points to evidence that life could exist on Mars.
    Duration: 43 Min
  • {S}03.{E}17: JFK UFO Conspiracy

    S03.E17: JFK UFO Conspiracy

    A potentially disastrous fuel leak forces three astronauts to make a risky return to earth. And a NASA lunar probe reveals a mysterious crashed craft on the moon.
    Duration: 44 Min
  • {S}03.{E}18: Curse Of The Gas Giant
    New episode

    S03.E18: Curse Of The Gas Giant

    Jupiter is hotter than it should be, and scientists are baffled. There's a weird discovery on Mars and detectives ask for NASA's help on a murder cold case.
    Duration: 44 Min