It all starts by drilling “deeper, hotter, and faster” than any project attempted to date using a device called a gyrotron, the company says on its website. After using standard drills to cut through initial ground layers, Quaise experts will bring out the proprietary hole-makers, which utilize “millimeter waves to reach unprecedented depths.” On the other end, a dozen miles down, temperatures will hit 932 degrees Fahrenheit, all according to the startup.