9 of 10

Southern Ocean

The US Coast Guard Cutter Polar Star (WAGB 10) and crew departs Seattle on 16 November 2022. The crew left Seattle to begin Operation Deep Freeze, a 32,000 km (20,000-mile) round-trip supporting the annual joint military mission to resupply the United States Antarctic stations in support of the National Science Foundation, the lead agency for the United States Antarctic Program. Photo courtesy of the US Coast Guard/ Petty Officer 3rd Class Michael Clark.