Flying the Global Hawk

An unpiloted aircraft system, operated by NASA and designed to gather atmospheric data, has completed its first flight over the Pacific and Arctic oceans.

Soaring through the air, the Global Hawk unpiloted craft can reach heights of 60,000 feet.
The Global Hawk can fly autonomously to altitudes above 60,000, roughtly twice as high as a commercial airliner, and as far as 11,000 nautical miles. Operators pre-program a flight path, and then the plane flies itself for as long as 30 hours.
courtesy NASA/Dryden/Carla Thomas