The team also predicted that by 1993 the hole would reach its 49,000-foot target. However, the further down the drill went, the more unexpected things became.
The drill slowly inched closer to Earth’s center, but, bizarrely, an unexpected change began to thwart the team. Something totally unexpected lurked beneath the Russian tundra, and it was about to make their mission a lot more difficult than they had initially anticipated… Photo Credit: Credits