the deepest and largest man-made holes around the world
Since the early 1960s, humans have attempted to drill down to the Earth’s mantle.
Russia holds the record for the deepest man-made hole in the world at more than 40,000 feet deep. That’s 7.6 miles.
No one has ever reached the Earth’s mantle, although scientists have never given up trying to get to it.
Some of the other deepest man-made holes are from oil companies, while some of the largest holes have been dug to extract copper and diamonds.
It took 20 years, but Russia drilled down 40,230 feet into the earth, before heat forced work to stop. Despite reaching such a depth, Russia never got to the mantle.
Business Insider