ARCTIC OCEAN - U.S. Coast Guard Seaman Evan Pace (left) and Seaman Michael Kelley hold a sinker weight in place on the stern of the Coast Guard Cutter Healy (WAGB-20) Sunday, Sept. 23, 2018, approximately 300 miles northeast of Barrow, Alaska. Pace and Kelley are two of approximately 100 crew members and 30 scientists aboard the Healy deploying sensors and autonomous submarines in the Arctic to study stratified ocean dynamics and how environmental factors affect the water below the ice surface for the Office of Naval Research. The Healy, which is homeported in Seattle, is one of two ice breakers in U.S. service and is the only military ship dedicated to conducting research in the Arctic. U.S. Coast Guard photo by Senior Chief Petty Officer NyxoLyno Cangemi