Star Trek quite literally did go “into darkness” for Earth Hour in London.
According to Al Caudullo of 3D Entertainment News, Ars Electronica Futurelab and Ascending Technologies, created a Star Trek logo from LED lights flown into air by mini-copters, or drones over The London Bridge.
The Star Trek logo was approximately 308 feet tall, and the mini-copters caused it to hover 118 feet above the ground, and with the highest point being an estimated 426 feet above ground.
Really cool!