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Theorists believe that thousands of years ago, extraterrestrials landed on Earth.
Top Ancient Aliens Mysteries Explored
UFO Secrets of New Mexico
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Alien Gateways to Other Worlds
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Mystic Energy Lines Run Through New York?
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Alien Hybrids and the Secret Programs Behind Them
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Government UFO Secrets Finally Exposed?
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Japan's WILDEST Alien Encounters *Compilation* | Ancient Aliens | The UnXplained Zone
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Storming Area 51 and Beyond: Top Alien Cover-Ups Revealed
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Alien Mysteries of the Sea: Forbidden Islands & Deep Ocean Secrets
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Alien Power Zones: Mysterious Energy Fields Found Worldwide
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Groundbreaking and Unexplainable Technology
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Unexplained Sound Technology
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Earth's Most Inexplicable Places
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The Complex Universe of Stars
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Top-Secret UFO Investigations Uncovered!
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3 Rare Alien Artifacts Revealed
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Is NASA Hiding Proof of Life on Mars?!
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Super Dangerous UFO Weapons
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4 Unexplainable Mysteries From Around The World
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About the Show
Ancient Aliens explores the controversial theory that extraterrestrials have visited Earth for millions of years. From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode in this hit HISTORY series gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate. Did intelligent beings from outer space visit Earth thousands of years ago?
