Being able to autonomously sense obstacle and avoid them while moving at high speed is key to future drone operations. A new sensor, based on high-sensitivity quantum dots, provides that capability in a small package ‘the size of a biscotti’ and at low cost, allowing small drones to fly through cluttered environments at up to 45 mph while dodging hazards.

Details in my piece in New Scientist magazine here .940nm-20m-sml20-set