Scientists Dug The Deepest Hole On Earth But This Broke Their Drill

Breaking The Record

Lone Star didn’t find what it was searching for, but it held the record of being the deepest hole on Earth for another five years. On June 6, 1979, SG-3, one of the Kola boreholes, shattered that record. By 1983, the nine-inch-wide hole had sunk 39,000 feet under the planet’s surface.

Breaking The Record

After That Milestone

Now that they have reached that milestone, the Kola Peninsula researchers have temporarily stopped activities. They took a year’s break from construction to enable people to view the beautiful site.

After That Milestone