Deep in the Arctic Circle, in Russia, lies the deepest hole ever dug which was once called 'the entrance to hell'. The Kola ...
The Daily Galaxy on MSN
Why the deepest hole on Earth was sealed, and what they discovered before it was closed!
Deep in the Arctic Circle, there’s a man-made hole that once earned the nickname “the entrance to hell.” The Kola Superdeep ...
Explore the fascinating tale of the Kola Superdeep Borehole, a monumental scientific endeavor by the Soviet Union that aimed ...
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