The Deepest Man-Made Hole Ever Created Was Sealed Up And Abandoned – Due To An Astonishing Event

Image: via The Earth Chronicles of Life

On a remote peninsula in north-west Russia, scientists have spent decades drilling down towards the center of the earth. At over 40,000 feet, their borehole is the deepest that man has ever gone. Then, however, something unexpected happens, and the researchers are forced to seal up their experiment for good.