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Ancient Aliens Season 15

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Here's where to watch every episode of Ancient Aliens season 15. Mouseover or tap an episode to see where to stream it. Click or tap the play icon to stream it on the best available service.
Season 15, Episode 01 The Mystery of Nan Madol

S15 E01

Jan 26, 2020
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The Mystery of Nan Madol Jan 26, 2020 Giorgio Tsoukalos and David Childress explore the mysterious chain of manmade islets in Micronesia's Nan Madol; built from 250 million tons of volcanic rock, there are local legends that strange visitors floated the massive rocks through the air.

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Season 15, Episode 02 The Relics of Roswell

S15 E02

Feb 2, 2020
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The Relics of Roswell Feb 2, 2020 In 1947, the U.S. military collects debris from what they claim is a crashed weather balloon outside of Roswell, N.M.; new evidence may prove that the wreckage belonged to an alien spacecraft and that remnants may have been overlooked.

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Season 15, Episode 03 Destination Chile

S15 E03

Feb 9, 2020
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Destination Chile Feb 9, 2020 The Chilean government questions whether new footage from a Navy helicopter indicates a connection to geoglyphs in the Atacama Desert.

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Season 15, Episode 04 The Real Men in Black

S15 E04

Feb 16, 2020
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The Real Men in Black Feb 16, 2020 An investigation into the rumors that the U.S. government is working covertly with space aliens to create alien-human hybrids.

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Season 15, Episode 05 The Mystery of the Stone Giants

S15 E05

Feb 23, 2020
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The Mystery of the Stone Giants Feb 23, 2020 From Egypt to Easter Island, towering figures built by ancient man stand watch over the Earth. Are these stone giants simply a testament to humanity's past or could they depict visitors from another world' And do they serve a technological purpose that modern man is just now unlocking'

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Season 15, Episode 06 The World Before Time

S15 E06

Mar 1, 2020
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The World Before Time Mar 1, 2020 Shocking new evidence reveals that advanced civilizations might have existed on Earth tens of thousands of years ago. Is it possible that a technologically advanced society thrived on Earth then’ And did they leave behind a record that they lived alongside extraterrestrial beings’

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Season 15, Episode 07 They Came from The Pleiades

S15 E07

Mar 8, 2020
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They Came from The Pleiades Mar 8, 2020 In numerous ancient cultures throughout the world, stories were told of ancestors that came to Earth from the Pleiades star cluster, but could new scientific findings reveal that humankind's true origins lie not on Earth but 400 light years away.

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Season 15, Episode 08 The Immortality Machine

S15 E08

Mar 15, 2020
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The Immortality Machine Mar 15, 2020 In the Mojave Desert, there is a structure built to bestow everlasting life and according to the architect, the blueprint was provided by an extraterrestrial visitor known as the Integratron, could it actually provide the key to immortality.

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Season 15, Episode 09 The Shapeshifters

S15 E09

Mar 22, 2020
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The Shapeshifters Mar 22, 2020 Accounts of creatures that can shape shift from one form into another can be found, but could similarities between the ancient stories and modern-day alien abduction accounts reveal that shape shifters are real and have come to Earth.

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Season 15, Episode 10 The Mystery of Skinwalker Ranch

S15 E10

Mar 29, 2020
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The Mystery of Skinwalker Ranch Mar 29, 2020 Nestled within a remote valley in Utah, is a ranch that some believe is a hotbed of strange, inexplicable phenomena including terrifying creatures, paranormal apparitions and lights in the sky. Could the bizarre activity have a connection to an alien entity known as the Skinwalker'

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Season 15, Episode 11 The Ultimate Guide to UFOs

S15 E11

Apr 12, 2020
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The Ultimate Guide to UFOs Apr 12, 2020 UFO witnesses have reported a wide variety of objects in Earth's skies--and not only in modern times, but for centuries. What might we learn from examining their shapes, sizes, and the way they maneuver' Could they offer important clues about other intelligent life in our galaxy'

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Season 15, Episode 12 Aliens and the Presidents

S15 E12

Apr 19, 2020
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Aliens and the Presidents Apr 19, 2020 The White House has consistently denied having any knowledge of alien craft visiting Earth, but presidential encounters with UFOs and other strange phenomena can be found going all the way back to George Washington. Is it possible that extraterrestrials have been monitoring–and even influencing–America’s presidents’

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Season 15, Episode 13 The Divine Number

S15 E13

Nov 14, 2020
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The Divine Number Nov 14, 2020 In numerous sacred traditions, the number 12 holds a divine significance; it can be found repeated in ancient architecture, groups of 12 wisdom keepers and even the latest scientific principles.

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Season 15, Episode 14 The Lost Kingdom

S15 E14

Nov 21, 2020
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The Lost Kingdom Nov 21, 2020

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Season 15, Episode 15 The Forbidden Bible

S15 E15

Nov 28, 2020
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The Forbidden Bible Nov 28, 2020

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