Science and Technology The Deepest Hole Ever Dug on the Planet: What the Soviets Wanted 12 Km Underground — And Why They Gave Up After Two Decades and Heavy Investments Romário Pereira de Carvalho 06/10/2025 at 14:54
Interesting facts The Soviet Project That Challenged the Earth’s Crust and Ended in Abandonment Ana Alice 14/05/2025 at 15:12
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