NASA Image As the Sun Rises, NASA's Global Hawk is Being Prepared for Flight

[Bok]

Hot summer days in Southern California’s Antelope Valley force many aircraft operations to start early in the morning before the sun rises. On a back ramp at Armstrong Flight Research Center on Edwards Air Force Base, a NASA Global Hawk goes through testing of its communication components and satellite connection links in preparation for flight.

More... (http://www.nasa.gov/centers/armstrong/features/global_hawk_prepared_for_flight.html)