ARCTIC OCEAN - Crew members aboard the U.S. Coast Guard Cutter Healy (WAGB-20) position a sinker weight in place Sunday, Sept. 23, 2018, approximately 300 miles northeast of Barrow, Alaska. The Healy is underway in the Arctic with about 100 crew members and 30 scientists to deploy sensors and autonomous submarines 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