NASA / JIM ROSS / SCIENCE PHOTO LIBRARY NASA / JIM ROSS / SCIENCE PHOTO LIBRARY
Global Hawk unmanned aerial vehicle (UAV), operated by NASA, taking off from the main runway at Edwards Air Force Base, California, USA. This is Global Hawk 872, on a flight to check instruments for the 2014 ATTREX (Airborne Tropical Tropopause Experiment) Pacific Stratospheric Mission. Yellow-and-black pods housing the Hawkeye cloud particle probe instruments for this mission are mounted underneath the wings. This aircraft has a wingspan of 35 metres. Developed between 2001 and 2005 by Northrop Grumman for US military surveillance, Global Hawks have been used by NASA since 2009. Photographed on 20 December 2013.
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