U.S. Air Force Capt. Michael Rivera, 304th Expeditionary Airlift Squadron pilot, positions a U.S. Air Force C-17 Globemaster III to land at Phoenix Runway at McMurdo Station in the Antarctic Feb. 22, 2019. The airfield is part of the National Science Foundation’s U.S. Antarctic Program, and members from the 304th EAS deploy to provide cargo support to researchers.