unbfacts: The Russians began digging a hole through the Earth’s…

By | July 27, 2024

unbfacts:

The Russians began digging a hole through the Earth’s crust in the 1970s. They stopped at 40,230 feet, in 1989. Today, the Kola Superdeep Borehole remains the deepest artificial point, as well as the deepest borehole on Earth.

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