NASA's DC-8 flying laboratory lifts off the runway at Air Force Plant 42 in Palmdale, Calif., on its first flight in the ARCTAS atmospheric science mission

Jingqiu Moa and Xinrong Ren check out Pennsylvania State University's Airborne Tropospheric Hydrogen Oxides Sensor instrument during the ARCTAS mission upload

Mar 7, 2008

Lee Mauldin inspects the National Center for Atmospheric Research CIMS instrument probe on the exterior of NASA's DC-8 flying lab prior to the ARCTAS mission

Mar 7, 2008

Eric Apel and Alan Hills of the National Center for Atmospheric Research install the Trace Organic Gas Analyzer's sensor probe on the exterior of NASA's DC-8

Mar 7, 2008

Deedee Montzka of the National Center for Atmospheric Research checks out the NOxyO3 instrument on NASA's DC-8 flying laboratory before the ARCTAS mission

Mar 7, 2008