NASA’s DC-8 operations engineer, Nickelle “Nicki” Reid, left, embraces Katherine Ball, chemical engineering Ph.D. candidate at California Institute of Technology, after the DC-8 aircraft and crew return to NASA Armstrong’s Building 703 in Palmdale, California, on April 1, 2024, following the aircraft’s final mission in support of the Airborne and Satellite Investigation of Asian Air Quality (ASIA-AQ).