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The deepest blue hole has been found — but experts don’t know what lies at the bottom
The deepest blue hole in the world has reportedly been found. However, scientists have no idea what lies at the bottom of it, ...
Deep in the Arctic Circle, in Russia, lies the deepest hole ever dug which was once called 'the entrance to hell'. The Kola Superdeep Borehole is the deepest manmade hole, and deepest artificial point ...
The Taam ja’ is blue hole is still defined by what we don’t know. We can say it’s deeper than 1,390 feet, and the bottom hasn’t been found.
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