USCGC Polar Star (WAGB 10) crew members from the main propulsion division lubricate fuel injection pump racks on the main diesel engines while transiting the Pacific Ocean during Operation Deep Freeze 2026, Dec. 19, 2025. The cutter deployed in support of a joint service, inter-agency support operation for the National Science Foundation, which manages the United States Antarctic Program. (U.S. Coast Guard photo by Petty Officer 3rd Class Christopher Bokum)