Soviet scientists drilled 12 kilometres into the Earth, but the world’s deepest borehole barely scratched the planet’s crust |
In 1970, Soviet scientists began drilling into the ground on the Kola Peninsula in the far northwest of the country, hoping to reach deeper into the earth than anyone before them. Almost two decades later, in 1989, the project hit its final depth of 12,262 metres, making it the deepest vertical borehole ever created by…