ARCTIC OCEAN – A team of scientists lay a cable on the Arctic ice Sunday, Sept. 30, 2018, about 350 miles northeast of Barrow, Alaska. The cable contains a series of sensors which attach to the bottom of a buoy that sits on top of the ice to measure wind speed and direction, air temperature, barometric pressure and other scientific measurements to study stratified ocean dynamics. 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, buoys 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)