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s22e16 · 2026-08-14 · 02:00
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Ancient Aliens
History Documentary
What it is
Ancient Aliens explores the controversial theory that extraterrestrials have visited Earth for millions of years. From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode in this hit History series gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate. Did intelligent beings from outer space visit Earth thousands of years ago?
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Episode guide
15 this season · 346 totals15e01 The Mystery of Nan Madol 2020-01-26 03:00
The Mystery of Nan Madol
Giorgio Tsoukalos and David Childress explore the mysterious chain of manmade islets in Micronesia's Nan Madol. Built from a staggering 250 million tons of volcanic rock, could the local legends be true--that strange visitors floated the massive rocks through the air? And might the site's powerful magnetic anomalies be the result of extraterrestrial technology?
s15e02 The Relics of Roswell 2020-02-02 03:00
The Relics of Roswell
In 1947 the U.S. military collected the debris of what they claimed was a crashed weather balloon outside of Roswell, New Mexico. But new evidence may prove the conspiracy theorists right--that the wreckage actually belonged to an extraterrestrial spacecraft. If true, could remnants of it still exist that the recovery teams overlooked'
s15e03 Destination Chile 2020-02-09 03:00
Destination Chile
Chile boasts the highest number of annual UFO sightings of any nation on Earth. Now, incredible new footage of a strange craft–captured by a Navy helicopter–has even the Chilean government asking if alien visitors are drawn to this part of the world. Is there a connection to the more than 5,000 ancient geoglyphs found into Chile's Atacama Desert'
s15e04 The Real Men in Black 2020-02-16 03:00
The Real Men in Black
The allegations that the U.S. government is plotting with space aliens.
s15e05 The Mystery of the Stone Giants 2020-02-23 03:00
The Mystery of the Stone Giants
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'
s15e06 The World Before Time 2020-03-01 02:00
The World Before Time
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'
s15e07 They Came from the Pleiades 2020-03-08 02:00
They Came from the Pleiades
In numerous ancient cultures throughout the world, stories were told of ancestors that came to Earth from the Pleiades star cluster. Could new scientific findings reveal that humankind's true origins lie not on Earth… but 400 light years away'
s15e08 The Immortality Machine 2020-03-15 01:00
The Immortality Machine
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, it has been called a work of genius, but could it actually provide the key to immortality'
s15e09 The Shapeshifters 2020-03-22 01:00
The Shapeshifters
Accounts of creatures that can shapeshift from one form into another can be found throughout history. Could striking similarities between the ancient stories and modern-day alien abduction accounts reveal that shapeshifters are real and have come to Earth from another world'
s15e10 The Mystery of Skinwalker Ranch 2020-03-29 01:00
The Mystery of Skinwalker Ranch
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'
s15e11 The Ultimate Guide to UFO's 2020-04-12 01:00
The Ultimate Guide to UFO's
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'
s15e12 Aliens and the Presidents 2020-04-19 01:00
Aliens and the Presidents
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'