NASA's Global Hawk 872 lifted off the runway at Edwards Air Force Base during a checkout flight of instruments for the 2014 ATTREX mission over the western Pacific Ocean. Yellow and black pods housing the Hawkeye cloud particle probe instruments being used during the mission can be seen underneath the wings.

NASA's Global Hawk 872 soared over Rogers Dry Lake at Edwards Air Force Base, CA, during an instrument checkout flight for the 2014 ATTREX mission over the western Pacific Ocean. The aircraft carried 13 science instruments to measure moisture and chemical composition of the stratosphere during the campaign.