A breakthrough effort to tap into deep geothermal energy is underway, as scientists and engineers plan to drill 12 miles deep ...

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.

Quaise Energy is deploying futuristic technology and banking on Trump’s support for accessing subterranean heat.

But to do so requires an intense source of millimetre-radio-wave radiation, and the only possible device that can do this is a gyrotron. The next challenge in gyrotron research for fusion ...