The BEST episodes of Ancient Aliens season 17

Every episode of Ancient Aliens season 17, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Ancient Aliens season 17!

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: 4/27/2024Network: HistoryStatus: Continuing
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Top Ten Alien Encounters
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7.65
119 votes

#1 - Top Ten Alien Encounters

Season 17 - Episode 6 - Aired 10/1/2021

We're counting down the world's top ten alien encounters, from the first reported abduction event to mass UFO sightings over New York's Hudson Valley to an incident in ancient Rome that changed the course of human history. Could these incredible accounts be actual encounters with visitors from the stars?

Watch Now:AmazonApple TV
Top Ten Alien Cover-Ups
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7.58
135 votes

#2 - Top Ten Alien Cover-Ups

Season 17 - Episode 3 - Aired 8/20/2021

Ancient Aliens is counting down the world's top ten alien cover-ups, from the famous Roswell Incident to a secret military base rumored to be housing ET technology to recently released UFO videos captured by cameras on Navy fighter jets. Has there been a massive cover-up regarding the truth about an extraterrestrial presence on Earth?

Watch Now:AmazonApple TV
The Human Experiment
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7.53
131 votes

#3 - The Human Experiment

Season 17 - Episode 5 - Aired 9/24/2021

Scientists now know that seven human-like species lived alongside Homo sapiens for thousands of years. But why is it that only humans survived? Is it possible that we were the product of extraterrestrial experimentation? Ancient Astronaut theorists Giorgio A. Tsoukalos. David Childress and William Henry will be joined by Rabbi Ariel bar Tzadok and filmmaker Caroline Cory to investigate the mystery of the Human genome. in an attempt to determine if human beings are the product of an extraterrestrial experiment. Might the ultimate proof we are not alone in the universe be hidden in our own genetic code?

Watch Now:Apple TV
Top 10 Mysterious Sites
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7.49
145 votes

#4 - Top 10 Mysterious Sites

Season 17 - Episode 2 - Aired 8/13/2021

Ancient Aliens is counting down the world's top ten most mysterious sites, from the towering Moai statues of Easter Island to the enormous megalithic blocks of Stonehenge to the precision cut stones of Puma Punku. Could these extraordinary places provide evidence of extraterrestrial visitation?

Watch Now:Apple TV
Top Ten Alien Artifacts
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7.48
124 votes

#5 - Top Ten Alien Artifacts

Season 17 - Episode 7 - Aired 10/8/2021

An ancient figurine of a modern-day airplane. A primitive statue of a man in a spacesuit. Mysterious crystal skulls whose origins are entirely unknown. For more than a decade on Ancient Aliens, we've traveled the globe and investigated strange objects found on every continent on Earth. We're counting down the top ten alien artifacts. Objects that could provide evidence that extraterrestrials once walked among us.

Watch Now:Apple TV
The Lost City of Peru
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7.36
166 votes

#6 - The Lost City of Peru

Season 17 - Episode 1 - Aired 8/6/2021

Giorgio A. Tsoukalos, David Childress and William Henry examine a recently discovered lost city in Peru that has upended the historical timeline of South America, revealing that civilization emerged thousands of years earlier than previously thought.

Watch Now:Apple TV
The Mystery of Mount Shasta
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7.33
132 votes

#7 - The Mystery of Mount Shasta

Season 17 - Episode 4 - Aired 9/17/2021

Examining the unique geology and location of Mount Shasta in northern California, to determine why it is known as a hotbed of strange events, from Bigfoot sightings to UFO encounters to hikers vanishing without a trace.

Watch Now:Apple TV