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Scientists Uncover the Deepest Blue Hole on Earth—And What Lies in Its Depths Remains a MysteryThe Taam Ja’ blue hole, a massive underwater ... site for marine science, deep-sea exploration, and even astrobiology, as ...
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Savonoski Crater: The mysterious, perfectly round hole in Alaska that scientists can't explainThe Savonoski Crater is a round hole in Alaska's Katmai National Park that has defied scientific explanation ever since it was discovered.
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