The stunning aerial dance of UFO's that wowed audiences in Steven Speilberg's Close Encounters of the Third Kind has become a reality thanks to the drone. The small aerial vehicles may be a potential threat in some circumstances but they can be beautiful in others. A spectacular aerial art form continues to evolve as operators use lighted drones and computer algorithms to create animations in the sky. Here are some of our favorites: Tripping the light fantastic in China. [embed]https://www.youtube.com/watch?v=CcVwTa0jozQ[/embed] Intel's 2018 light show in Sacramento used 1500 drones to put on this stunning display. [embed]https://www.youtube.com/watch?v=KhDEEN4gcpI[/embed] A record-breaking display from the Chinese city of Xi'an using more than 1300 drones. [embed]https://www.youtube.com/watch?v=2ac_RjtF7-Y&vl=en[/embed] Drones at the opening of the 2018 Winter Olympic Games. [embed]https://www.youtube.com/watch?v=HbqFN44-mmY[/embed]