Here’s What is at the Bottom of the Deepest Hole on Earth

Here’s What is at the Bottom of the Deepest Hole on Earth

In the year 1970, Soviet scientists began one of the greatest and most ambitious drilling and mining experiments in human history. In the Kola Peninsula, a drilling project started which would go on to reach farther down into the Earth’s crust than any other in history, setting a Guinness World record that still stands today.

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