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World News

The Times of India News

World / The Times of India

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The Soviet secret: Why Russia dug the deepest hole on Earth and then sealed it

The Kola Superdeep Borehole was the USSRs bold attempt to probe Earths crust during the Cold War, drilling over 12 km down for pure science. Engineers battled extreme heat, collapsing rock and soaring costs before abandoning the effort. Yet the project reshaped geology, revealing unexpected heat, deep fluids and ancient fossils beneath an ordinary Arctic manhole.

10 Dec 2025 9:30 pm