Season 21
(2025)
Cast
as Narrator (voice)
as Self
as Self
as Self
as Self
as Self
as Self
as Self
as Self
as Self
as Self
as Self
as Self
as Self
as Self
as Self
Episodes
The Top Ten Extraordinary Discoveries 8.0
February 7, 2025
Ancient Aliens is counting down ten of history's most astonishing discoveries; breakthroughs that challenge traditional…
The Top Ten Mysterious Monoliths 8.0
February 14, 2025
Ancient Aliens is counting down the world's top ten most mysterious monoliths. From a 500-ton stone believed to represe…
The Top Ten UFO Crashes 8.5
February 21, 2025
Ancient Aliens is counting down ten of the most compelling UFO crashes that have been reported across the globe. From a…
The Top Ten Unexplained Technologies 8.0
February 28, 2025
Ancient Aliens is counting down ten of the most astonishing and unexplainable technologies in history. From mysterious …
The Top Ten Secret Projects 8.0
March 7, 2025
Ancient Aliens is counting down ten of history's most compelling and covert projects that study the UFO phenomenon. Fro…
The Top Ten Mysterious Mountains 8.0
March 14, 2025
Ancient Aliens is counting down ten mysterious mountains that are notorious for otherworldly phenomena. From a summit …
Mysteries of the Aztecs 8.5
March 21, 2025
The Aztecs built one of the world's most powerful and feared empires and they claimed that they were guided by a panthe…
The Glowing Orb Phenomenon 8.5
March 28, 2025
Across the globe, reports of mysterious glowing orbs are on the rise. Their movements frequently defy the laws of physi…
The Legacy of J. Allen Hynek 8.5
August 29, 2025
Dr. J. Allen Hynek is best known as the notorious government UFO debunker who became one of the founding fathers of ufo…
The Volcano Factor 8.5
September 5, 2025
Volcanoes have inspired countless myths and legends, but curiously, they are also major hotspots for UFO sightings; is …
The Birdman Mystery 8.5
September 12, 2025
Throughout the ancient world, there are depictions of mysterious figures that appear to be half human and half bird. In…
The Abduction Files 8.5
September 19, 2025
All over the world, there are people who claim they have been abducted by aliens; since the 1970s, a growing number of …
The Giants 8.5
October 2, 2025
Examining how thousands of years ago, people all over the world described encounters with enormous, human-like beings; …
Aliens In Our Midst 8.5
October 9, 2025
In the age of smartphones and social media, more evidence of otherworldly activity has come to light than ever before. …
Britain's UFO Files 8.5
October 16, 2025
From ancient sites like Stonehenge to the crop circle phenomenon and modern-day UFO sightings, Great Britain is a place…
Mysteries Of The Norse Gods 7.0
October 23, 2025
The ancient legends of the Norse read like modern science-fiction, with powerful gods wielding incredible weapons and h…
Secrets of Japan 8.5
November 6, 2025
Japan is a land rich with ancient mysteries, and recently, it has also become known as a UFO hotspot. Could it be, as A…
Episode 18 10.0
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Episode 19 0.0
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Episode 20 0.0
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