Specials

2009 | 10 Episodes

Specials of Ancient Aliens premiered on March 8, 2009

What if life on Earth began in outer space? Millions of people accept the theory that intelligent life forms visited Earth thousands of years ago and were worshipped as gods by primitive man. Are monuments like Stonehenge and Easter Island the last remains of an ancient alien visitation? From unexplainable super structures, to knowledge of the solar system, mathematics, and even the ability to make electricity, this special explores evidence of super-human influences on ancient man and embarks on an around-the-world search for answers. It's an investigation into a theory some believe cannot be true, but many agree cannot be ignored.

Season 1

2010 | 5 Episodes

Season 1 of Ancient Aliens premiered on April 20, 2010

Season 2

2010 | 10 Episodes

Season 2 of Ancient Aliens premiered on October 28, 2010

Season 3

2011 | 16 Episodes

Season 3 of Ancient Aliens premiered on July 28, 2011

Season 4

2012 | 10 Episodes

Season 4 of Ancient Aliens premiered on February 17, 2012

Season 5

2012 | 12 Episodes

Season 5 of Ancient Aliens premiered on December 21, 2012

ANCIENT ALIENS Season 5 continues to explore the fascinating field of alien research. From cave paintings to firsthand accounts, this inquiry provides grounded historical depth.

Season 6

2013 | 11 Episodes

Season 6 of Ancient Aliens premiered on September 30, 2013

ANCIENT ALIENS Season 6 on H2 continues to explore the fascinating field of alien research. Did intelligent aliens roam the earth thousands of years ago? Were structures created to worship or guide them? Do they walk among us now? From cave paintings to ancient texts and from artifacts to firsthand accounts, this inquiry presents grounded historical depth.

Season 7

2014 | 8 Episodes

Season 7 of Ancient Aliens premiered on January 24, 2014

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 H2 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?

Season 8

2014 | 8 Episodes

Season 8 of Ancient Aliens premiered on June 13, 2014

ANCIENT ALIENS examines 75 million years of the most credible alien evidence here on Earth. From the age of dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the U.S., each episode gives historic depth to the questions, speculations, controversies, firsthand accounts and grounded theories surrounding an age-old debate. Did intelligent life forms from outer space visit Earth thousands of years ago? Do they visit us now?

Season 9

2014 | 12 Episodes

Season 9 of Ancient Aliens premiered on October 31, 2014

ANCIENT ALIENS Season 9 continues to explore theories about what influence aliens may have had on the beginnings of civilization and whether clues are right in front of our eyes.

Season 10

2015 | 10 Episodes

Season 10 of Ancient Aliens premiered on July 24, 2015

ANCIENT ALIENS examines 75 million years of the most credible alien evidence here on Earth. From the age of dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the U.S., each episode gives historic depth to the questions, speculations, controversies, firsthand accounts and grounded theories surrounding an age-old debate. Did intelligent life forms from outer space visit Earth thousands of years ago? Do they visit us now?

Season 11

2016 | 15 Episodes

Season 11 of Ancient Aliens premiered on May 6, 2016

ANCIENT ALIENS returns in its continued global search for proof that extraterrestrial life exists and these unknown lifeforms visited Earth thousands of years ago. Lead expert Giorgio Tsoukalos joins Ancient Astronaut theorists as this season travels to over a dozen countries to explore firsthand signs of ancient alien visitation.

Season 12

2017 | 16 Episodes

Season 12 of Ancient Aliens premiered on April 28, 2017

Season 13

2018 | 15 Episodes

Season 13 of Ancient Aliens premiered on April 27, 2018

Season 14

2019 | 22 Episodes

Season 14 of Ancient Aliens premiered on May 31, 2019

Season 15

2020 | 12 Episodes

Season 15 of Ancient Aliens premiered on January 25, 2020

Season 16

2020 | 10 Episodes

Season 16 of Ancient Aliens premiered on November 13, 2020

Season 17

2021 | 7 Episodes

Season 17 of Ancient Aliens premiered on August 6, 2021

Season 18

2022 | 20 Episodes

Season 18 of Ancient Aliens premiered on January 7, 2022

Season 19

2023 | 20 Episodes

Season 19 of Ancient Aliens premiered on January 6, 2023

Season 20

2024 | 20 Episodes

Season 20 of Ancient Aliens premiered on January 5, 2024

Season 21

2025 | 18 Episodes

Season 21 of Ancient Aliens premiered on February 7, 2025