Drones have been a part of our lives for years now, and many industries are hard to imagine without them. While wireless phone charging doesn’t surprise anyone anymore, sending power through the air to a moving drone is definitely a much bigger engineering challenge. Laser-powered wireless charging for drones isn’t exactly a new concept, though. Now, researchers at the Civil Aviation University of China have focused on one of the last remaining limitations: the efficiency of the drone's receiver. There are still quite a few challenges to overcome before laser-powered charging becomes practical, but this study is definitely a huge step forward.