There is absolutely nothing man-made 35 miles down. Even if we could build something capable of withstanding the heat at that depth, the surrounding rock would instantly liquefy into magma if any cavity appeared to release the pressure keeping it solid.
There is absolutely nothing man-made 35 miles down. Even if we could build something capable of withstanding the heat at that depth, the surrounding rock would instantly liquefy into magma if any cavity appeared to release the pressure keeping it solid.