USCGC Polar Sea (WAGB-11) (IMAGE) Princeton University Caption The samples were collected on the U.S. Coast Guard icebreaker Polar Sea on an ambitious trans-Arctic expedition in 1994. Credit US Coast Guard Usage Restrictions No restrictions. License Public Domain 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.