Ancient Aliens Premieres Friday 2/17, at 9/8c

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Season 2 Full Episodes

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Ancient Aliens: Aliens and Lost Worlds (44:12)

Mysterious legends and crumbling ruins are all that is left of our planet's lost worlds. Could there be proof of ancient alien visitors hidden among the rubble and artifacts of civilizations that vanished long ago?

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Ancient Aliens Premieres Friday 2/17, at 9/8c

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Season 2 Full Episodes (3)

  • Ancient Aliens: Aliens and Lost Worlds
    Ancient Aliens: Aliens and Lost Worlds

    Video Clip (44:12)

    Mysterious legends and crumbling ruins are all that is left of our planet's lost worlds. Could there be proof of ancient alien visitors hidden among the rubble and artifacts of civilizations that vanished long ago?

    Video Clip (44:12)
  • Ancent Aliens: Aliens Plagues and Epidemics
    Ancent Aliens: Aliens Plagues and Epidemics

    Video Clip (44:20)

    Scientists are often baffled by unidentified strains of bacteria with mysterious origins. Can they be traced to extraterrestrial life forms?

    Video Clip (44:20)
  • Ancient Aliens: Aliens and Ancient Engineers
    Ancient Aliens: Aliens and Ancient Engineers

    Video Clip (44:13)

    Is it possible that the tools and technology of ancient builders hailed from distant galaxies? Did aliens have a hand in the construction of the world's most elaborate temples and monuments?

    Video Clip (44:13)