Polar Panorama The heavy ice breaker Coast Guard cutter Polar Star keeps shipping channels open approaching McMurdo Station, Antarctica, Jan. 28, 2023. Polar Star is supporting the National Science Foundation and the U.S. Antarctic Program through Operation Deep Freeze. SHARE IMAGE: Download Image: Full Size (0.55 MB) Tags: science, navy, coast guard, Operation Deep Freeze Photo By: Navy Senior Chief Petty Officer RJ Stratchko VIRIN: 230128-N-NX070-1004C.JPG Photo Gallery