U.S. Navy Petty Officer 1st Class Webb Phillips, a member of the military dive team aboard Coast Guard Cutter Polar Star, communicates with divers conducting an underwater inspection of the ship while moored at McMurdo Station, Antarctica, Jan. 23, 2015. Polar Star's crew is operating in support of the U.S. Antarctic program, managed by the National Science Foundation. (U.S. Coast Guard photo by Petty Officer 1st Class George Degener)