Season
- Season 0 2009-03-08
- Season 1 2010-04-20
- Season 2 2010-10-28
- Season 3 2011-07-28
- Season 4 2012-02-17
- Season 5 2012-12-21
- Season 6 2013-09-30
- Season 7 2014-01-24
- Season 8 2014-06-13
- Season 9 2014-10-31
- Season 10 2015-07-24
- Season 11 2016-05-06
- Season 12 2017-04-28
- Season 13 2018-04-27
- Season 14 2019-05-31
- Season 15 2020-01-25
- Season 16 2020-11-13
- Season 17 2021-08-06
- Season 18 2022-01-07
- Season 19 2023-01-06
- Season 20 2024-01-05
- Season 21 2025-02-07
Season 21 Episode
- Season 15 The Mystery of Nan Madol
- Season 15 The Relics of Roswell
- Season 15 Destination Chile
- Season 15 The Real Men in Black
- Season 15 The Mystery of the Stone Giants
- Season 15 The World Before Time
- Season 15 They Came from The Pleiades
- Season 15 The Immortality Machine
- Season 15 The Shapeshifters
- Season 15 The Mystery of Skinwalker Ranch
- Season 15 The Ultimate Guide to UFOs
- Season 15 Aliens and the Presidents
Ancient Aliens - Season 15 Episode 7 They Came from The Pleiades
7.00 42 minutes 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.
