Starting Again

The whole project seemed to have been shut down but the researchers did not want to abandon their hard work just that easily. Since the previous borehole they had dug went deep down, they knew they had to work it out somehow. So they started again from a depth of about 23,000 feet. In the year 1989, the hole had gone to a depth of a record-breaking 40,230 feet which is around 7.5 miles.