RV Laurence M. Gould is an icebreaker used by researchers from the United States' National Science Foundation. for research in the Southern Ocean. The vessel is named after Laurence McKinley Gould, an American scientist who had explored both the Arctic and Antarctic. He was second in command of Admiral Richard E. Byrd's first expedition to Antarctica from 1928 to 1930. He helped to set up an exploration base at Little America on the Ross Ice Shelf at the Bay of Whales.

The RV Polar Duke is a 219-foot ice-strengthened research vessel built in 1983. Polar Duke was designed specifically for scientific research with wet and dry laboratories, and an electronic workshop and laboratory. The hull is constructed similar to that of an icebreaker, but the ship isn’t as powerful as an icebreaker. It was originally equipped with a stern A-frame crane and helicopter deck; these were both removed in a major refit in 1998.