Petermann Glacier (1 of 2) (image) University of Delaware Caption Petermann Glacier connects the Greenland ice sheet to the Arctic Ocean. The vast flat expanse stretching into the background is Petermann Glacier, well over one-third of which has now broken off. Credit Photo courtesy of professor Andreas Muenchow, University of Delaware Usage Restrictions None 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.