Crewmembers from the Coast Guard Cutter Polar Star work together to handle lines while mooring to a fuel pier in Lyttelton, New Zealand, Tuesday, Jan. 2, 2018. The crew of the Seattle-based Polar Star visited New Zealand on its way to Antarctica in support of Operation Deep Freeze 2018, the U.S. military’s contribution to the National Science Foundation-managed U.S. Antarctic Program. U.S. Coast Guard photo by Chief Petty Officer Nick Ameen.