ARCTIC OCEAN – Sam Brenner (left) and Martin Doble prepare to attached ice auger blades to an engine Sunday, Sept. 30, 2018, about 350 miles northeast of Barrow, Alaska. Brenner and Doble are scientists studying stratified oceans dynamics in the Arctic. The U.S. Coast Guard Cutter Healy (WAGB-20) is underway in the Arctic with about 100 crew members and 30 scientists to deploy sensors and semi-autonomous submarines to study 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. (NyxoLyno Cangemi/U.S. Coast Guard)