Boeing's Phantom Eye Hydrogen Spy Plane Flies For 4 Days

Boeing's Phantom Eye Hydrogen Spy Plane Flies For 4 Days

This is Boeing's "Phantom Eye," a hydrogen-powered, unmanned spy plane that flies 65,000 feet above the ground and can fly for four days straight. Boeing hails it as the "first of its kind" -- its looks alone set it apart for that honor.

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