IceBridge (IMAGE) NASA/Goddard Space Flight Center Caption Iceberg in McMurdo Sound. The part of the iceberg below water appears bluest primarily due to blue light from the water in the Sound. Credit Chris Larsen/UAF Usage Restrictions None 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.