Reaching a depth of 12,262 meters (40,230 feet), it remains the deepest man-made hole on Earth to this day. Originally intended as a scientific exploration of the Earth’s crust, the project ...

The Kola Superdeep Borehole, although only 9 inches in diameter, holds the distinction of being the deepest hole, plunging to ... delving deeper than any other man-made structure.

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.

An curved arrow pointing right. A hole in Earth's ozone layer created by man-made substances could be healed by the 2050s. Produced by Noah Friedman. Original reporting by Jessica Orwig.

Then geothermal energy, the heat from the earth that can be used to generate ... traveling at the speed of light dig the deepest human made holes ever? How one geothermal startup is hoping to ...

Now that summer is here, you'll likely be slathering up with sunscreen. Earth, it turns out, is doing the same, according to an encouraging study recently published by a team of scientists at NASA ...