Ancient Aliens

The BEST episodes of Ancient Aliens

Every episode of Ancient Aliens ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of 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 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?

Last Updated: 9/30/2022Network: History
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Aliens and Human Evolution
star
8.50
2 votes

#1 - Aliens and Human Evolution

Season 18 - Episode 21 - Aired 9/26/2022

Investigating the possibility of previous alien visits and future encounters.

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Alien Operations
star
8.00
84 votes

#2 - Alien Operations

Season 5 - Episode 13 - Aired 11/5/2013

Mysterious surgeries performed by early humans... Strange beings with miraculous powers... And a cover up--destroying centuries of scientific knowledge. Are recent breakthroughs in medicine the result of years of research?

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The Reptilians
star
8.00
28 votes

#3 - The Reptilians

Season 6 - Episode 15 - Aired 7/25/2014

The Reptilian alien is a fixture of science-fiction, from H.P. Lovecraft's tales of Valusians to the Cardassians in Star Trek, to the Visitors of the television series V. But could ancient myths about reptilian creatures provide evidence that they are more than just a pop-culture creation? Legends of serpent beings can be found on every continent. The Bible, the Quran and the ancient texts known as the Nag Hammadi codices all describe reptilian entities interacting with humans. In Central and South America people worship the feathered serpent god called Kulkukan or Quetzalcoatl. In India, the Nagas are half-human half-reptile gods who live underground in a place called Patala. And in China and Japan, many emperors claim to be the descendants of dragons. Could these stories represent real Reptilian beings that people all over the world actually encountered in the ancient past?

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Aliens and Superheroes
star
8.00
28 votes

#4 - Aliens and Superheroes

Season 6 - Episode 19 - Aired 8/22/2014

From the beginning of recorded history, humans have told stories about beings with super-human strength, super-sonic speed, and supernatural abilities. The ancients had heroic tales about Zeus, Thor, and Hanuman while today we have superhero stories about Superman, Batman, and Spider-man. Mythologists say these epic stories resemble each other because they may have all come from a common set of oral legends created eons ago by our earliest ancestors. But might there be another, more otherworldly reason that the world's heroic myths are so similar? Is it possible, as many Ancient Astronaut Theorists contend, that these stories are actually based on extraordinary-- and possibly extraterrestrial--beings that lived on Earth in the distant past?

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Hidden Pyramids
star
8.00
28 votes

#5 - Hidden Pyramids

Season 7 - Episode 10 - Aired 4/17/2015

With infrared satellite technology detecting pyramids hidden underneath the sand in Egypt and airborne laser sensors discovering long lost pyramids beneath the jungles of Central America, many believe we have entered a new pyramid era--an age of discovery that will be marked by unimaginable new findings. 21st century excavations are also revealing fascinating new facts about pyramids that could potentially rewrite history. Archaeologists now believe the ancient pyramids in Peru are older than the Egyptian pyramids, and a recently surveyed megalithic site in Indonesia is now suspected to be a step pyramid built by a long lost civilization 20,000 years ago. But what can explain ancient man's apparent obsession with building pyramids? Ancient Astronaut theorists believe the world pyramid phenomena is not a coincidence, but evidence that Earth's earliest inhabitants may have had help from extraterrestrials.

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The Vanishings
star
8.00
28 votes

#6 - The Vanishings

Season 7 - Episode 11 - Aired 4/24/2015

Stories of civilizations large and small disappearing without a trace can be found throughout history and across the globe. From a previously unknown civilization in China, a vanished race of giants, to the unexplained disappearances of the Classic Maya and the Anasazi--elements of these disappearances cannot be completely explained by conventional scholars. Although these cultures have vanished from the face of the Earth, they have left behind intriguing clues--clues, some say point to an otherworldly explanation. And if entire groups have been taken off planet, might there be a connection with sites connected to mysterious vanishings of people, planes, and boats in various locations throughout the world? Could examining these disappearances lead us to not only uncover evidence of extraterrestrial intervention in our remote past, but also reveal the consequences for the future of the human race?

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The Alien Protocols
star
8.00
299 votes

#7 - The Alien Protocols

Season 13 - Episode 3 - Aired 5/11/2018

In 2017, a strange, cigar-shaped object enters the solar system from another star system, traveling in such an unusual trajectory it causes some astronomers to suggest that it could be an extraterrestrial craft.

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William Shatner Meets Ancient Aliens
star
7.98
137 votes

#8 - William Shatner Meets Ancient Aliens

Season 16 - Episode 6 - Aired 2/12/2021

In this extraordinary two-hour special, Shatner will bring thought-provoking questions to the leading experts of the show. Ancient Astronaut theorists Giorgio Tsoukalos, Erich von Däniken, David Childress, William Henry and Linda Moulton Howe will be joined by former British Ministry of Defense investigator Nick Pope, rocket scientist Dr. Travis Taylor, theoretical physicist Dr. Michio Kaku, and religious history experts Rabbi Ariel Bar Tzadok and Reverend Michael Carter. They will explore everything from human origins to groundbreaking archaeological finds, new understandings of the cosmos and the profound possibility that we are not alone in the universe.

Directors: Jon A. Levy
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Alien Evolution
star
7.96
178 votes

#9 - Alien Evolution

Season 8 - Episode 5 - Aired 8/21/2015

Ancient Astronaut theorists have suggested that many of the divine beings depicted in cultures throughout the world are not really divine--or mythological--but instead reflect extraterrestrial visitations that our ancestors did not understand. If true, what can account for all the different types of beings that are depicted, from anthropomorphic birds and reptiles, to gods with blue skin to multi-limbed humanoids? Might there have been numerous alien species inhabiting Earth? Could the accounts given by modern day alien abductees be evidence that these otherworldly entities continue to visit Earth to this day? And is it possible that they all have a common ancestor? In 1928, archaeologist Julio Tello discovered the Paracas skulls of Peru--elongated heads with cranial volumes at least 25% larger than the largest known human skulls. Some believe that these remains are of extraterrestrial origin.

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Return of the Egyptian Gods
star
7.94
67 votes

#10 - Return of the Egyptian Gods

Season 18 - Episode 20 - Aired 9/16/2022

In the 20th century, a mysterious British woman who claimed to be the reincarnation of an ancient Egyptian priestess shocked Egyptologists by accurately locating countless structures and artifacts in the Nile Valley.

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Earth Station Egypt
star
7.91
227 votes

#11 - Earth Station Egypt

Season 13 - Episode 7 - Aired 7/20/2018

Ancient astronaut theorist Giorgio A. Tsoukalos explores the latest scientific discoveries at some of the world's most ancient places to find evidence that extraterrestrials visited Egypt in the distant past.

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Secrets of the Exoplanets
star
7.89
149 votes

#12 - Secrets of the Exoplanets

Season 14 - Episode 22 - Aired 11/29/2019

Examining some of the thousands of potentially habitable exoplanets discovered over the past 20 years and whether some of them could be home to intelligent extraterrestrial life.

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The Artificial Human
star
7.87
195 votes

#13 - The Artificial Human

Season 13 - Episode 13 - Aired 8/31/2018

A look at whether or not intelligent robots are a threat to humanity or the next step in human evolution; as man and machine begin to merge, humanity could be fulfilling a destiny prepared for by aliens thousands of years ago.

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The Alien Phenomenon
star
7.85
155 votes

#14 - The Alien Phenomenon

Season 13 - Episode 14 - Aired 1/4/2019

Erich von Däniken's "Chariots of the Gods?" suggests that aliens visited Earth in the distant past, and there are those who believe that he will be proven right.

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Aliens and the Secret Code
star
7.83
751 votes

#15 - Aliens and the Secret Code

Season 3 - Episode 13 - Aired 10/19/2011

Megalithic monuments linked together by electromagnetic energy... Prehistoric ruins arranged across vast distances in straight lines... And advanced mathematics carved into landmarks more than 5000 years ago. Were ancient man's spectacular structures built by humans alone? Or do they bear evidence of being designed--and interconnected--by otherworldly visitors?

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The UFO Conspiracy
star
7.82
323 votes

#16 - The UFO Conspiracy

Season 13 - Episode 1 - Aired 4/27/2018

In 2017, news breaks that the Department of Defense recently spent millions investigating reports of UFOs; the latest disclosure about a series of secret government UFO projects dating back decades.

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Creatures of the Deep
star
7.82
133 votes

#17 - Creatures of the Deep

Season 8 - Episode 7 - Aired 9/4/2015

In August of 2014, Russian cosmonauts aboard the International Space Station discovered something incredibly unexpected covering parts of the windows--living sea plankton. If sea life can thrive in space, might the reverse be true as well? Might there be alien life forms that inhabit our seas? Throughout history, there have been tales of strange creatures hiding in Earth's waters. While many discount stories of sea monsters as purely mythological, it is estimated that Earth's oceans are home to between 700,000 to one million species--and shockingly, two-thirds of those species still remain unknown. Considering the recent discovery that some sea life can survive in outer space, is it possible that tales of giant creatures like the Kraken and The Loch Ness Monster are evidence of extraterrestrial entities taking refuge beneath the seas?

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Circles from the Sky
star
7.81
153 votes

#18 - Circles from the Sky

Season 8 - Episode 8 - Aired 9/18/2015

Over 10,000 crop circles have been reported worldwide, appearing in 50 different countries, and nearly every continent on Earth. These strange designs pressed into crop fields range from simple circles to elaborate pictograms thousand of feet long. The phenomenon has been associated with scientific anomalies, strange lights, and even UFO activity. But critics say that they are all part of an elaborate hoax. But are they? Crop circles have been making modern headlines since the 1960's, but their history can be traced back hundreds--if not thousands of years. The designs themselves often contain encrypted messages and complex mathematical, geometric, and astronomical equations that perplex our top mathematicians and scientists. Ancient Astronaut Theorist, Giorgio Tsoukalos travels to England to meet with researchers and scientists to investigate the phenomenon both on the ground and in the lab to find out what we haven't been told.

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The World on Alert
star
7.80
148 votes

#19 - The World on Alert

Season 18 - Episode 4 - Aired 1/28/2022

Across the globe, high-ranking government officials are openly talking about Unidentified Aerial Phenomena. But why now? Ancient Astronaut theorists suggest the evidence has become too great to ignore--and the truth about an extraterrestrial presence on Earth will soon be revealed.

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City of the Gods
star
7.80
495 votes

#20 - City of the Gods

Season 12 - Episode 7 - Aired 6/9/2017

Researchers suggest that the ancient site of Teotihuacan in central Mexico was once home to a highly advanced, perhaps extraterrestrial, civilization; excavations at Teotihuacan have unearthed discoveries out of place in the ancient world.

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Aliens and the Founding Fathers
star
7.78
670 votes

#21 - Aliens and the Founding Fathers

Season 3 - Episode 11 - Aired 10/5/2011

What is the meaning behind secret messages found throughout Washington, D.C.? Did America's Founding Fathers know something about ancient aliens that the general public did not? And if so, could this knowledge have been incorporated into the symbols, architecture, and even the founding documents of the United States of America?

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The Da Vinci Conspiracy
star
7.78
735 votes

#22 - The Da Vinci Conspiracy

Season 4 - Episode 8 - Aired 4/6/2012

Might an examination of Leonardo Da Vinci's masterful paintings, highly technical hand-drawn sketches, and private journals reveal knowledge of otherworldly technology and extraterrestrial beings?

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Voices of the Gods
star
7.77
418 votes

#23 - Voices of the Gods

Season 12 - Episode 11 - Aired 7/21/2017

India's Sanskrit texts are filled with incredible stories about advanced technology in the ancient world. Highly complex building techniques, brain surgery, flying crafts, and even nuclear physics are described with uncanny accuracy. Hindu scholars attribute this knowledge to a time when "gods" walked among men. Might this period of time actually be referring to an age when extraterrestrials inhabited the planet? Giorgio A. Tsoukalos travels to India to further explore the Sanskrit texts, as well as the structures and technology that have stood the test of time. From a temple that inexplicably survived a major earthquake to evidence of ancient brain surgery and instructions for advanced flying machines, Giorgio studies the sacred knowledge that is said to have come directly from the voices of the gods.

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The Alien Frequency
star
7.76
463 votes

#24 - The Alien Frequency

Season 12 - Episode 8 - Aired 6/16/2017

The use of mantras and chanting to connect with a higher plane has existed in cultures all over the world dating back thousands of years, but why would people who had no contact with each other all subscribe to this practice? Could there be certain frequencies that connect us with greater--perhaps extraterrestrial--forces? Researchers have found that dozens of megalithic sites stretching across the globe--like the prehistoric Newgrange monument in Ireland, the chiseled labyrinths underneath the island of Malta, and the giant temple complex of Angkor Wat in Cambodia--were all designed to emanate the exact same frequency. The planets in our solar system each give off a distinct sound, and certain places on Earth, like Taos, New Mexico, have been found to produce a hum from an unknown source. Might the best evidence of alien intervention on Earth be found not with our eyes... but with our ears?

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Aliens and the Third Reich
star
7.75
1195 votes

#25 - Aliens and the Third Reich

Season 2 - Episode 5 - Aired 11/25/2010

If ancient aliens visited Earth in the remote past, could they have given us advanced technology, past down through human history? And could this technology have helped the Third Reich build mysterious weapons and crafts far beyond the limits of 20th century science?

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