South Korea’s sound barrier-chasing train, and more in the week that was

Tesla's Gigafactory is spitting out lithium-ion batteries at breakneck pace, but the automaker isn't stopping there. Elon Musk just announced plans to give the factory a $350 million upgrade so that it can manufacture electric motors and gearboxes fo...

Six innovative solar systems that go beyond standard arrays

By Cat DiStasio Solar technology has skyrocketed in recent years, as new innovations pave the way for more affordable designs that generate clean energy in unique ways. We've branched far beyond the familiar solar panel, with new developments that e...