The temperature was about 1,100☌ (about 2,000☏), but the real shocker was the sound that was recorded. The drill broke through into a cavity, and the scientists lowered some equipment to see what was down there.
The story goes that sometime in 1989, Russian scientists in Siberia had drilled a borehole some 14.5 kilometers deep into the Earth's crust. There is one urban legend in particular that creeps out a lot of people.
