Swarm Drones Size (IMAGE) Delft University of Technology Caption The tiny drone fits into the palm of a hand and weighs 33 grams. Together with the other drones in a swarm, it is able to quickly explore an unmanned environment. Credit TU Delft/ MAVLab Usage Restrictions Use only related to this research. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.