Underwater Drone (IMAGE) Aarhus University Caption The 2.5-meter-long underwater drone is ready to be launched through the hole in the sea ice. Credit Photo: Lars Chresten Lund Hansen Usage Restrictions May be used in relation to this news release 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.