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Ancient Aliens

Season 21 · Episode 17

Landed Thu, 6 Nov 2025 · 21:00 your time · 1 episode · 1h 0m

The Season 21 finale of Ancient Aliens (Episode 17) aired Thursday, 6 November 2025 at 9pm ET on History.

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  1. S21E17Secrets Of Japan60mJapan is a land rich with ancient mysteries, and recently, it has also become known as a UFO hotspot. Could it be, as Ancient Astronaut Theorists suggest, that this island nation has a long history of extraterrestrial activity?
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Ancient Aliens
22 seasons · 293 episodes · airing
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Streaming on Tubi in United States · also on Hulu, The Roku Channel, Prime Video.

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