Secrets Hidden in Antarctica and Beyond *Marathon*

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Published Jun 19, 2026

Explore some of the most mysterious theories on Earth and beyond, from alleged UFO conspiracies and hidden agendas to secrets buried in Antarctica and the ancient enigma of Nan Madol, as investigators search for evidence that could rewrite history. See more in this marathon.

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"Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years.

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