Seasons and episodes
1Season 1 Apr. 20, 2010
- There are still no episodes this season
2Season 2 Oct. 28, 2010
- There are still no episodes this season
3Season 3 Jul. 28, 2011
- There are still no episodes this season
4Season 4 Feb. 17, 2012
4 - 11Secrets of the Pyramids Dec. 21, 2012- 4 - 12Aliens and Cover-Ups Dec. 28, 2012
- 4 - 13Alien Power Plants Jan. 04, 2013
- 4 - 14Destination Orion Jan. 11, 2013
- 4 - 15The Einstein Factor Jan. 18, 2013
5Season 5 Dec. 21, 2012
- 5 - 13Alien Operations Nov. 05, 2013
- 5 - 14Emperors, Kings and Pharaohs Nov. 08, 2013
- 5 - 15Mysterious Relics Nov. 16, 2013
6Season 6 Sep. 30, 2013
- There are still no episodes this season
7Season 7 Jan. 24, 2014
- There are still no episodes this season
8Season 8 Jun. 13, 2014
- There are still no episodes this season
9Season 9 Oct. 31, 2014
- There are still no episodes this season
10Season 10 Jul. 24, 2015
- There are still no episodes this season
11Season 11 May. 06, 2016
- There are still no episodes this season
12Season 12 Apr. 28, 2017
- There are still no episodes this season
13Season 13 Apr. 27, 2018
- There are still no episodes this season
14Season 14 May. 31, 2019
- There are still no episodes this season
15Season 15 Jan. 25, 2020
- There are still no episodes this season
16Season 16 Nov. 13, 2020
- There are still no episodes this season
17Season 17 Aug. 06, 2021
- There are still no episodes this season
18Season 18 Jan. 07, 2022
- There are still no episodes this season
19Season 19 Jan. 06, 2023
19 - 11The Top Ten Pyramid Sites Jun. 30, 2023
19 - 12The Top Ten Mysterious Devices Jul. 07, 2023
19 - 13The Top Ten Mysterious Islands Jul. 14, 2023
19 - 14The Top Ten Alien Craft Jul. 21, 2023
19 - 15Edgar Cayce: The Sleeping Prophet Aug. 04, 2023
19 - 16The Gods of Greece Aug. 11, 2023
19 - 17The New UFO Hunters Aug. 18, 2023
19 - 18Power of the Talisman Aug. 25, 2023
19 - 19The Top Ten Mysteries of the Deep Sep. 08, 2023
19 - 20The Top Ten Alien Petroglyphs Sep. 15, 2023
20Season 20 Jan. 05, 2024
20 - 1The Top Ten Alien Influencers Jan. 05, 2024
20 - 2The Top Ten Extraordinary Creatures Jan. 12, 2024
20 - 3The Top Ten Hidden Alien Bases Jan. 19, 2024
20 - 4The Top Ten Scariest Encounters Feb. 02, 2024
20 - 5The Top Ten Alien Codes Feb. 09, 2024
20 - 6The Top Ten Alien Disasters Feb. 16, 2024
20 - 7Secrets Of The Sumerians Feb. 23, 2024
20 - 8The UFO Superhighway Mar. 01, 2024
20 - 9Mysteries of Scotland Mar. 08, 2024
20 - 10Mystery of the Stone Spheres Mar. 15, 2024
20 - 11Mysteries of the Maya Jun. 28, 2024
20 - 12Unlocking the Stargates Jul. 05, 2024
20 - 13The Whistleblowers Jul. 12, 2024
20 - 14The Search For Extraterrestrial Intelligence Jul. 19, 2024
20 - 15Jacques Vallée: UFO Pioneer Aug. 09, 2024
20 - 16The Teachers Aug. 16, 2024
20 - 17Egypt's Giant Tombs Aug. 23, 2024
20 - 18The Linda Moulton Howe Files Aug. 30, 2024
20 - 19The Chosen Sep. 06, 2024
20 - 20Resurrecting Puma Punku Sep. 13, 2024
21Season 21 Feb. 07, 2025
21 - 1The Top Ten Extraordinary Discoveries Feb. 07, 2025
21 - 2The Top Ten Mysterious Monoliths Feb. 14, 2025
21 - 3The Top Ten UFO Crashes Feb. 21, 2025
21 - 4The Top Ten Unexplained Technologies Feb. 28, 2025
21 - 5The Top Ten Secret Projects Mar. 07, 2025
21 - 6The Top Ten Mysterious Mountains Mar. 14, 2025
21 - 7Mysteries of the Aztecs Mar. 21, 2025
21 - 8The Glowing Orb Phenomenon Mar. 28, 2025
21 - 9The Legacy of J. Allen Hynek Aug. 29, 2025
21 - 10The Volcano Factor Sep. 05, 2025
21 - 11The Birdman Mystery Sep. 12, 2025
21 - 12The Abduction Files Sep. 19, 2025
21 - 13The Giants Oct. 02, 2025
21 - 14Aliens In Our Midst Oct. 09, 2025
21 - 15Britain's UFO Files Oct. 16, 2025
21 - 16Mysteries Of The Norse Gods Oct. 23, 2025
21 - 17Secrets of Japan Nov. 06, 2025
Creator
Creator
Cast
Narrator (voice)
Self
Self
Self
Self
Self
Self
Self
Synopsis
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 to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.
Original title Ancient Aliens
First air date Apr. 20, 2010
Last air date Nov. 06, 2025
Average Duration 42 minutes
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