Kola Superdeep Borehole: The Deepest Hole on Earth
The Kola Superdeep Borehole is the deepest hole ever drilled by humanity, reaching a depth of 12,262 meters (40,230 feet) below the Earth’s surface. It is located in the Kola Peninsula, Russia, and was drilled between 1970 and 1989. Mysteries of The Kola Superdeep Borehole There are many mysteries surrounding the Kola Superdeep Borehole. One …