Members of the National Science Foundation wintering in the Antarctic retrieve supplies airdropped by a C-17 Globemaster III Dec. 20. Airmen from the 62nd and 446th Airlift Wings at McChord Air Force Base, Wash., delivered 70 tons of supplies to the team. The mission was a "proof of concept" flight for the C-17 and was part of Joint Task Force-Support Forces Antarctica's Operation Deep Freeze. (U.S. Air Force photo/Lt. Col. James McGann)