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World's deepest hole sealed up for concerning reason
Deep in the Arctic Circle, in Russia, lies the deepest hole ever dug which was once called 'the entrance to hell'. The Kola Superdeep ... To put it into perspective, that's 12.2km, or 7.58 miles ...
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Due to worrisome reason, the 'Entrance to Hell' in Russia is sealed
Near the Norwegian border somewhere in the depths of the Arctic Circle in Russia lies the deepest hole ever drilled, once called "the entrance to hell ... plan to drill into the Earth's crust ...