with 10 episodes 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 mon… see more

with 5 episodes premiered on April 20, 2010

with 10 episodes premiered on October 28, 2010

with 16 episodes premiered on July 28, 2011

with 10 episodes premiered on February 17, 2012

with 12 episodes 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.

with 11 episodes 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 t… see more

with 8 episodes 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… see more

with 8 episodes 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… see more

with 12 episodes 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.

with 10 episodes 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… see more

with 15 episodes 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… see more

with 16 episodes premiered on April 28, 2017

with 15 episodes premiered on April 27, 2018

with 22 episodes premiered on May 31, 2019

with 12 episodes premiered on January 25, 2020

with 10 episodes premiered on November 13, 2020

with 7 episodes premiered on August 6, 2021

with 20 episodes premiered on January 7, 2022

with 20 episodes premiered on January 6, 2023

with 20 episodes premiered on January 5, 2024