Thursday, April 15, 2010

A look at Nasa's unmanned aircraft

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Nasa has successfully started flying unmanned aircraft to carry out environmental research.

The space agency has acquired three Global Hawk drones from the United States Air Force.

They're designed to fly at very high altitudes for extended periods of time.

Peter Bowes has been to see one the planes, in its hangar at Nasa's Dryden Flight Research Centre in California's Mojave Desert.

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