However, due to technical limitations, researchers suspect that this enigmatic sinkhole could extend even deeper into the ...

The Kola Superdeep Borehole is the deepest manmade hole, and deepest artificial point, on Earth, measuring at 40,230ft feet. To put it into perspective, that's 12.2km, or 7.58 miles - that's the ...

The deepest hole humanity has ever managed ... and replicate the process all over the world, since the heat should be available absolutely anywhere on Earth with this drilling technology.

Scientists now know how to drill deep enough to tap into an energy supply that would power the world for more than 20 million years if we capture just 0.1 percent of it.