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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
20 this season · 346 totals20e01 The Top Ten Alien Influencers 2024-01-06 02:00
The Top Ten Alien Influencers
Did a biblical patriarch receive instructions from 200 angels high above the earth? Were the ancient Greeks taught how to work metal by a race of fish-people? And might Egypt's most controversial Pharoah have been an extraterrestrial being? Giorgio Tsoukalos looks at mysterious teachers who have appeared throughout history–and reveals The Top Ten Alien Influencers who he believes provide the ultimate proof of extraterrestrial contact.
s20e02 The Top Ten Extraordinary Creatures 2024-01-13 02:00
The Top Ten Extraordinary Creatures
For more than a decade, Ancient Aliens has collected dozens of reports of encounters with strange and mysterious beasts. Now, Ancient Astronaut Theorist Giorgio Tsoukalos takes a look back at The Top Ten Extraordinary Creatures we've investigated–creatures that just might provide compelling evidence of extraterrestrial visitation.
s20e03 The Top Ten Hidden Alien Bases 2024-01-20 02:00
The Top Ten Hidden Alien Bases
Ancient Aliens is counting down the top ten locations around the world that just might be hiding alien bases, including a cavern beneath the ice of Antarctica, a lake in China that is a hotspot for UFOs, and a pyramid under the slopes of Mt. Denali in Alaska. Are these locations proof that extraterrestrials are not only visiting our planet… but are hiding in plain sight?
s20e04 The Top Ten Scariest Encounters 2024-02-03 02:00
The Top Ten Scariest Encounters
Ancient Aliens is counting down the top ten scariest encounters that just might be evidence of extraterrestrial visitation. From an encounter in rural Texas that left onlookers with unexplainable injuries, to mysterious cattle mutilations, and a man who was abducted in front of a group of people. Are these frightening encounters proof of extraterrestrial contact?
s20e05 The Top Ten Alien Codes 2024-02-10 02:00
The Top Ten Alien Codes
Ancient Aliens is counting down the top ten of the most intriguing–and mysterious–symbols and codes found across the globe that just might contain proof of otherworldly contact. From glyphs in the Peruvian desert, to spiral petroglyphs embedded with advanced math, and a language with an otherworldly origin, could these codes unlock the secrets of our extraterrestrial past?
s20e06 The Top Ten Alien Disasters 2024-02-17 02:00
The Top Ten Alien Disasters
Ancient Aliens is counting down the top ten most devastating disasters ever documented that might have an otherworldly connection, from a flying monster at a nuclear incident, a meteor that wiped out the dinosaurs, and a deadly virus that might be from another world. Could these disasters be proof of extraterrestrial contact?
s20e07 Secrets of the Sumerians 2024-02-24 02:00
Secrets of the Sumerians
More than 7,000 years ago, the ancient Sumerians established what is considered the world's first civilization, and they credited their extraordinary achievements to their gods, the Anunnaki. But is it possible that these powerful beings were, in fact, extraterrestrial visitors to Earth?
s20e08 The UFO Superhighway 2024-03-02 02:00
The UFO Superhighway
Along the Earth's north 37th parallel there have been so many reports of unidentified flying objects, animal mutilations, and other mysterious events that it has been dubbed The UFO Superhighway. Could there be something about this latitude that is attracting extraterrestrial visitors?
s20e09 Mysteries of Scotland 2024-03-09 02:00
Mysteries of Scotland
For thousands of years, Scotland has been an epicenter of otherworldly phenomena. It is home to mysterious ancient stone circles, stories of strange beings, and is a major hotspot for UFO sightings. Could it be that Scotland is a magnet for extraterrestrial visitors?
s20e10 Mystery of the Stone Spheres 2024-03-16 01:00
Mystery of the Stone Spheres
Throughout the world there are mysterious ancient stones shaped into perfect spheres. Many of them show clear evidence of being manmade and some completely defy explanation. Could the mystery of the stone spheres provide clues about humankind's alien past?
s20e11 Mysteries of the Maya 2024-06-29 01:00
Mysteries of the Maya
Considered by many to be the greatest civilization in the history of the Americas, the Maya thrived for more than 2,000 years. Now, new evidence is being discovered that completely upends our understanding of this ancient culture… and might provide evidence that the Maya came in contact with extraterrestrial visitors.
s20e12 Unlocking The Stargates 2024-07-06 01:00
Unlocking The Stargates
For thousands of years, cultures around the world have held a belief in stargates through which beings have traveled to Earth from distant points in the universe and even other dimensions. Examining if such portals could truly exist, and if we obtain the key to unlocking these stargates, if we will find a cosmos teaming with life?
s20e13 The Whistleblowers 2024-07-13 01:00
The Whistleblowers
Crashed UFOs. Recovered alien entities. Secret programs. For decades, incredible claims have been made about an extraterrestrial presence on Earth–and the government has gone to great lengths to discredit them. Are we nearing the day when whistleblowers will finally be taken seriously–and their accounts proven true?
s20e14 The Search for Extraterrestrial Intelligence 2024-07-20 01:00
The Search for Extraterrestrial Intelligence
For thousands of years, humankind has attempted to make contact with beings from beyond Earth. Now, in the 21st century, the search for extraterrestrial intelligence is ramping up like never before, with powerful new technologies allowing us to explore billions of stars across the universe. Are we on the verge of first contact?
s20e15 Jacques Vallée: UFO Pioneer 2024-08-10 01:00
Jacques Vallée: UFO Pioneer
Dr. Jacques Vallee holds multiple scientific degrees, is a best-selling author, and is one of the fathers of the internet. But he is best known for his revolutionary work in the field of UFOs, and his bold theories challenge our notions of alien life. Will Dr. Vallee's incredible work soon lead to answers about what has been happening in our skies for thousands of years?
s20e16 The Teachers 2024-08-17 01:00
The Teachers
Throughout ancient cultures there are stories of god-like beings providing instruction to early humans, helping our ancestors to establish the first civilizations and teaching them in various disciplines. Could it be true? And do mysterious figures who appear throughout history provide evidence that these otherworldly teachers have been with us all along?
s20e17 Egypt's Giant Tombs 2024-08-24 01:00
Egypt's Giant Tombs
Deep beneath the sands of Egypt lie 24 enormous sarcophagi--and every one of them is empty. What purpose might these giant tombs have served? And is it possible that the perfectly carved stone boxes--each weighing more than 70 tons--were designed not by humans... but by otherworldly visitors?
s20e18 The Linda Moulton Howe Files 2024-08-31 01:00
The Linda Moulton Howe Files
For more than four decades, award-winning journalist Linda Moulton Howe has covered the most mysterious phenomena on Earth. Could her investigations on everything from bizarre animal deaths to crop formations and alien abductions lead us to a profound new reality?
s20e19 The Chosen 2024-09-07 01:00
The Chosen
From biblical patriarchs to modern day alien abductees, throughout history, there have been people who claimed to have contact with otherworldly beings. And often bearing important messages for humanity. Could it be that they have been chosen to help carry out an extraterrestrial agenda?
s20e20 Resurrecting Puma Punku 2024-09-14 01:00
Resurrecting Puma Punku
Puma Punku in Bolivia features some of the largest stone blocks on Earth, each carved with incredible precision. But the blocks lie scattered across the landscape, baffling archaeologists as to what the ancient site might have been. Could new advancements in technology help to solve a centuries old puzzle–and offer proof of alien intervention on Earth?