Air Force hand-me-down Global Hawks spruced up by NASA to perform scientific tasks not available from satellites and manned aircraft.
Can fly 30 hours at 65,000 feet economically and completely autonomously.
As Americans pull out of Iraq, more and more UAVs will be converted to scientific and commercial use.
Click photo to see details.
UPDATE: Big money still in Global Hawks: Northrop Grumman/Ratheon SAS awarded $50 million for sensor suite repair capability.