7.9/10131 votes#1 - The Mystery of Nan Madol
Season 15 Episode 1 - Aired 1/25/2020
Giorgio Tsoukalos and David Childress explore the mysterious chain of manmade islets in Micronesia's Nan Madol; built from 250 million tons of volcanic rock, there are local legends that strange visitors floated the massive rocks through the air.
Director: N/A
Writer: N/A
6.9/1087 votes#2 - The Relics of Roswell
Season 15 Episode 2 - Aired 2/1/2020
In 1947, the U.S. military collects debris from what they claim is a crashed weather balloon outside of Roswell, N.M.; new evidence may prove that the wreckage belonged to an alien spacecraft and that remnants may have been overlooked.
Director: N/A
Writer: N/A
7.7/1092 votes#3 - Destination Chile
Season 15 Episode 3 - Aired 2/8/2020
The Chilean government questions whether new footage from a Navy helicopter indicates a connection to geoglyphs in the Atacama Desert.
Director: N/A
Writer: N/A
6.7/1067 votes#4 - The Real Men in Black
Season 15 Episode 4 - Aired 2/15/2020
An investigation into the rumors that the U.S. government is working covertly with space aliens to create alien-human hybrids.
Director: N/A
Writer: N/A
7.0/1079 votes#5 - The Mystery of the Stone Giants
Season 15 Episode 5 - Aired 2/22/2020
From Egypt to Easter Island, towering figures built by ancient man stand watch over the Earth. Are these stone giants simply a testament to humanity's past or could they depict visitors from another world' And do they serve a technological purpose that modern man is just now unlocking'
Director: N/A
Writer: N/A
7.8/1091 votes#6 - The World Before Time
Season 15 Episode 6 - Aired 2/29/2020
Shocking new evidence reveals that advanced civilizations might have existed on Earth tens of thousands of years ago. Is it possible that a technologically advanced society thrived on Earth then’ And did they leave behind a record that they lived alongside extraterrestrial beings’
Director: N/A
Writer: N/A
7.1/1077 votes#7 - They Came from The Pleiades
Season 15 Episode 7 - Aired 3/7/2020
In numerous ancient cultures throughout the world, stories were told of ancestors that came to Earth from the Pleiades star cluster, but could new scientific findings reveal that humankind's true origins lie not on Earth but 400 light years away.
Director: N/A
Writer: N/A
6.6/1073 votes#8 - The Immortality Machine
Season 15 Episode 8 - Aired 3/14/2020
In the Mojave Desert, there is a structure built to bestow everlasting life and according to the architect, the blueprint was provided by an extraterrestrial visitor known as the Integratron, could it actually provide the key to immortality.
Director: N/A
Writer: N/A
6.4/1058 votes#9 - The Shapeshifters
Season 15 Episode 9 - Aired 3/21/2020
Accounts of creatures that can shape shift from one form into another can be found, but could similarities between the ancient stories and modern-day alien abduction accounts reveal that shape shifters are real and have come to Earth.
Director: N/A
Writer: N/A
7.2/1079 votes#10 - The Mystery of Skinwalker Ranch
Season 15 Episode 10 - Aired 3/28/2020
Nestled within a remote valley in Utah, is a ranch that some believe is a hotbed of strange, inexplicable phenomena including terrifying creatures, paranormal apparitions and lights in the sky. Could the bizarre activity have a connection to an alien entity known as the Skinwalker'
Director: N/A
Writer: N/A
7.1/1077 votes#11 - The Ultimate Guide to UFOs
Season 15 Episode 11 - Aired 4/11/2020
UFO witnesses have reported a wide variety of objects in Earth's skies--and not only in modern times, but for centuries. What might we learn from examining their shapes, sizes, and the way they maneuver' Could they offer important clues about other intelligent life in our galaxy'
Director: N/A
Writer: N/A
7.1/1080 votes#12 - Aliens and the Presidents
Season 15 Episode 12 - Aired 4/18/2020
The White House has consistently denied having any knowledge of alien craft visiting Earth, but presidential encounters with UFOs and other strange phenomena can be found going all the way back to George Washington. Is it possible that extraterrestrials have been monitoring–and even influencing–America’s presidents’
Director: N/A
Writer: N/A
The Best Episodes of Ancient Aliens Season 15
Every episode of Ancient Aliens Season 15 ranked from best to worst. Discover the Best Episodes of Ancient Aliens Season 15!
Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings...
Genres:DocumentaryMysterySci-Fi & Fantasy
Network:History
Season 15 Ratings Summary
"The Mystery of Nan Madol" is the best rated episode of "Ancient Aliens" season 15. It scored 7.9/10 based on 131 votes. Directed by N/A and written by N/A, it aired on 1/25/2020. This episode is rated 1.0 points higher than the second-best, "The Relics of Roswell".