When did Ancient Aliens Season 21 Episode 9 air?
Ancient Aliens Season 21 Episode 9 aired on August 29, 2025 at 9 PM ET.
Ancient Aliens
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.
Created by: Kevin Burns
Season 21 · Episode 9
The Legacy of J. Allen Hynek
Aired Aug 29, 2025at 9PM·1h
Dr. J. Allen Hynek is best known as the notorious government UFO debunker who became one of the founding fathers of ufology. Was Dr. Hynek right when he ultimately concluded that there is a non-human intelligence on Earth?
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Direct answers for episode-level questions and details.
How long is Ancient Aliens Season 21 Episode 9?
This episode runs for approximately 60 minutes.
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