Ancient Aliens - Season 21
Run Time: 42 mins
Air Date: Fri, 7 Feb 2025
Average Rating: ⭐ 6.977 (286 votes)
History18 Episodes
The Top Ten Extraordinary Discoveries
Season 21 - Episode 1
Ancient Aliens is counting down ten of history's most astonishing discoveries; breakthroughs that challenge traditional beliefs about human ...
The Top Ten Mysterious Monoliths
Season 21 - Episode 2
Ancient Aliens is counting down the world's top ten most mysterious monoliths. From a 500-ton stone believed to represent an ancient UFO, to...
The Top Ten UFO Crashes
Season 21 - Episode 3
Ancient Aliens is counting down ten of the most compelling UFO crashes that have been reported across the globe. From an acorn shaped object...
The Top Ten Unexplained Technologies
Season 21 - Episode 4
Ancient Aliens is counting down ten of the most astonishing and unexplainable technologies in history. From mysterious golden orbs discovere...
The Top Ten Secret Projects
Season 21 - Episode 5
Ancient Aliens is counting down ten of history's most compelling and covert projects that study the UFO phenomenon. From clandestine governm...
The Top Ten Mysterious Mountains
Season 21 - Episode 6
Ancient Aliens is counting down ten mysterious mountains that are notorious for otherworldly phenomena. From a summit in Sri Lanka that is ...
Mysteries of the Aztecs
Season 21 - Episode 7
The Aztecs built one of the world's most powerful and feared empires and they claimed that they were guided by a pantheon of more than a tho...
The Glowing Orb Phenomenon
Season 21 - Episode 8
Across the globe, reports of mysterious glowing orbs are on the rise. Their movements frequently defy the laws of physics and now they are e...
The Legacy of J. Allen Hynek
Season 21 - Episode 9
Dr. J. Allen Hynek is best known as the notorious government UFO debunker who became one of the founding fathers of ufology. Was Dr. Hynek r...
The Volcano Factor
Season 21 - Episode 10
Volcanoes have inspired countless myths and legends, but curiously, they are also major hotspots for UFO sightings; is it possible that thes...
The Birdman Mystery
Season 21 - Episode 11
Throughout the ancient world, there are depictions of mysterious figures that appear to be half human and half bird. In many cultures, they ...
The Abduction Files
Season 21 - Episode 12
All over the world, there are people who claim they have been abducted by aliens; since the 1970s, a growing number of researchers have dedi...
The Giants
Season 21 - Episode 13
Examining how thousands of years ago, people all over the world described encounters with enormous, human-like beings; exploring how some ar...
Aliens In Our Midst
Season 21 - Episode 14
In the age of smartphones and social media, more evidence of otherworldly activity has come to light than ever before. From a giant "shadow ...
Britain's UFO Files
Season 21 - Episode 15
From ancient sites like Stonehenge to the crop circle phenomenon and modern-day UFO sightings, Great Britain is a place of mysteries; explor...
Mysteries Of The Norse Gods
Season 21 - Episode 16
The ancient legends of the Norse read like modern science-fiction, with powerful gods wielding incredible weapons and high technology. Could...
Secrets of Japan
Season 21 - Episode 17
Japan is a land rich with ancient mysteries, and recently, it has also become known as a UFO hotspot. Could it be, as Ancient Astronaut Theo...
Skulls of the Gods
Season 21 - Episode 18
Texts, archaeology and legend contain evidence of past human-extraterrestrial contact.