U.S. Coast Guard Ensign Madelyn Greene, a crew member aboard USCGC Polar Star (WAGB 10), prepares to land a drone as the cutter sits hove-to in the Ross Sea, Jan. 19, 2026. Pacific Air Forces operates on a 24-hour basis to provide the U.S. National Science Foundation complete joint operational and logistic support for Operation Deep Freeze. (U.S. Coast Guard photo by Petty Officer 2nd Class Christopher Bokum)