U.S. Coast Guard Chief Petty Officer John Mijares, a damage controlman, looks at a leak in the shaft seal on the Coast Guard Cutter Polar Star (WAGB 10) in the McMurdo Sound, Antarctica, Jan. 27, 2024. 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 Petty Officer 2nd Class Ryan Graves)