Ice-Breaking Ship (IMAGE) U.S. National Science Foundation Caption This research ship, NATHANIEL B. PALMER, is an ice-breaking ship used for scientific research by the U.S. Antarctic Program. Credit Photograph by: Al Hickey<BR> National Science Foundation Usage Restrictions Image may only be printed or broadcast with appropriate credit or copyright information. 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.