A 3D render of Borobotics’ geothermal drilling rig. Credit: Borobotics The machine — nicknamed “Grabowski” after the famous cartoon mole — is the world’s first geothermal drill that ...

Heat mined from underground is called geothermal—“earth heat,” in ancient Greek—and can be used to produce steam, spin a turbine, and generate electricity. Until recently, humans have ...