Deep Lake Drilling System: (IMAGE) University of Bonn Caption In the summer of 2010 the system was used for 10 weeks to drill samples at water depths of up to 360 m. Credit Photo: Thomas Litt/Uni Bonn Usage Restrictions This photo may be used with the press 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.