List of Ancient Aliens episodes



Ancient Aliens is an American television series that explores the pseudoscientific ancient astronauts hypothesis, as well as other pseudoscientific and pseudohistoric topics such as advanced ancient civilizations, extraterrestrial contact and ufology, and alleged conspiracy theories, in a non-critical documentary format. Episodes begin and end with rhetorical questions which frame the explored topics. The series has aired on History and other A&E Networks since 2010, and has been a target for criticism of History's channel drift, and criticism for promoting unorthodox or unproven hypotheses as fact. All episodes are narrated by Robert Clotworthy. The series is produced by Prometheus Entertainment.

The series is based on and inspired by the works of Erich von Däniken and Zecharia Sitchin, among other writers. The works of Graham Hancock, Robert Bauval, Brinsley Le Poer Trench, Charles Hapgood, and Edgar Cayce are also referenced in many episodes. Producer Giorgio Tsoukalos and writer David Childress are often featured as guests.

The series began as a two-hour documentary special in 2009 and continued for three seasons as a flagship series on History. Seasons 4 to 7 aired on H2, with frequent re-airings of episodes on History and other A&E services. In 2015, the series returned to History after H2 was relaunched as Vice on TV. Season 15 premiered in 2020. The series continued with its sixteenth season in November 2020.

Broadcast episodes
List of episodes broadcast using the Ancient Aliens title card. Availability of episodes is different in each broadcast market and language.

Season 1 (2009–10)
The 2009 Ancient Aliens documentary was retitled "Chariots, Gods & Beyond" and packaged as the series pilot. All episodes, except the pilot, carry the Ancient Aliens: The Series title card.

Season 18 (2022)
Six episodes were broadcast as Ancient Aliens on Location. The special episodes include highlights from previously broadcast episodes as well as on-location segments.

Special episodes
Special episodes which include new footage in addition to selections from previously broadcast episodes. Availability of special episodes depends on the broadcast market and language.

Special Edition (2014)
Ancient Aliens: Special Edition features highlights from previously broadcast episodes. The episodes include extended interviews with guests and some new effects. The episodes were originally broadcast as part of Season 8.

The Ultimate Evidence (2015)
Ancient Aliens: The Ultimate Evidence is a repackage of previously broadcast episodes presented by Giorgio Tsoukalos. In some markets the series was broadcast as Ancient Aliens Ultimate Evidence. The episodes are bundled with Season 9.

Special Presentation (2022–2024)
Ancient Aliens: Special Presentation features highlights from previously broadcast episodes in a 90-minute format. Many segments from older episodes are presented in high-definition for the first time, in addition to new interview footage and effects.