Season 1

5 episodes · Apr 20, 2010 · 8.6

Season 2

10 episodes · Oct 28, 2010 · 8.5

Season 3

16 episodes · Jul 28, 2011 · 8.8

Season 4

10 episodes · Feb 17, 2012 · 9.1

Season 5

12 episodes · Dec 21, 2012 · 8.7

Season five of *Ancient Aliens* dives deeper than ever into the enduring mystery of extraterrestrial influence on human history. Building upon years of investigation, the series returns with a fresh look at compelling evidence – from enigmatic markings etched in ancient caves to …

Season 6

11 episodes · Sep 30, 2013 · 8.9

H2’s *Ancient Aliens* returns for a sixth season, diving deeper into the enduring mystery: could advanced alien beings have influenced humanity's past? The series continues its captivating exploration of unexplained phenomena – examining everything from enigmatic ancient structur…

Season 7

8 episodes · Jan 24, 2014 · 9.5

For millions of years, has Earth been quietly visited by extraterrestrial life? *Ancient Aliens* delves into this captivating and often debated possibility, exploring the compelling theory that aliens have shaped human history. Each episode journeys through time – uncovering pote…

Season 8

8 episodes · Jun 13, 2014 · 9.8

For over 75 million years, whispers of otherworldly visitors have echoed across our planet – and *Ancient Aliens* delves into the most compelling evidence to explore those possibilities. Journeying through history, from the era of the dinosaurs to the mysteries of ancient Egypt, …

Season 9

12 episodes · Oct 31, 2014 · 9.9

Season 9 of *Ancient Aliens* dives deeper into the provocative question: did extraterrestrial beings shape the course of human history? The series picks up its relentless search for evidence, revisiting compelling theories about alien influence on early civilizations and suggesti…

Season 10

10 episodes · Jul 24, 2015 · 9.6

For over 75 million years, whispers of otherworldly visitors have echoed across our planet – and *Ancient Aliens* delves into the compelling evidence. Journeying through history, from the era of dinosaurs to the mysteries of ancient Egypt, and uncovering everything from enigmatic…

Season 11

15 episodes · May 6, 2016 · 6.1

The quest for answers continues! *Ancient Aliens* is back, embarking on a worldwide journey to uncover compelling evidence that life beyond Earth has interacted with humanity throughout history. Led once again by the ever-curious Giorgio Tsoukalos, this season’s exploration takes…

Season 12

16 episodes · Apr 28, 2017 · 6.1

Season 13

15 episodes · Apr 27, 2018 · 5.8

Season 14

22 episodes · May 31, 2019 · 6.0

Season 15

12 episodes · Jan 25, 2020 · 6.0

Season 16

10 episodes · Nov 13, 2020 · 6.1

Season 17

7 episodes · Aug 6, 2021 · 6.0

Season 18

20 episodes · Jan 7, 2022 · 6.2

Season 19

20 episodes · Jan 6, 2023 · 6.7

Season 20

20 episodes · Jan 5, 2024 · 9.0

Season 21

20 episodes · Feb 7, 2025 · 8.4

Season 22

14 episodes · Jan 15, 2026 · 8.7