U.S. Coast Guard Cutter Polar Star (WAGB 10) crewmembers look over the Sydney harbor as the cutter arrives in Australia while transiting south to Antarctica, Dec. 10, 2023. The Polar Star is en route to Antarctica in support of Operation Deep Freeze, 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 Chief Petty Officer Matthew Masaschi.