Operation Deep Freeze The crew of the U.S. Coast Guard cutter Polar Star enjoys ice liberty during Operation Deep Freeze in McMurdo Sound, Antarctica, Jan. 7, 2025. The operation is a joint service, interagency effort supporting the National Science Foundation, which manages the U.S. Antarctic Program. SHARE: Download: Full Size (1.85 MB) Tags: DEEP FREEZE, Coast Guard Credit: Coast Guard Petty Officer 2nd Class Jeremy Burgess VIRIN: 250107-G-G0200-1006M.JPG Photo Gallery