Members of the military dive team aboard Coast Guard Cutter Polar Star launch a remote operated vehicle into the water to inspect the disabled fishing vessel Antarctic Chieftain, beset by ice near Cape Burks, Antarctica, Feb. 14, 2015. Dive team members used the ROV to inspect Antarctic Chieftain's damaged propellers. Polar Star's crew has been underway in Antarctica in support of Operation Deep Freeze 2015, part of the U.S. Antarctic Program, managed by the National Science Foundation. (U.S. Coast Guard photo by Petty Officer 1st Class George Degener)