A team from Stanford exploring PeLEDs, a next-generation type of LED, has found a way to make their lights brighter and more energy efficient. Although they’re too short-lived for commercial applications right now, they promise to revolutionize the way we think about lighting.

San Francisco is in the middle of a heated debate over autonomous vehicles after Waymo and Cruise were given the go-ahead to expand the operations of their driverless fleets. Residents who oppose the move are taking matters into their own hands by disabling vehicles with traffic cones.