The fifth science flight of NASA's Global Hawk (green line) concluded when the aircraft landed at NASA's Wallops Flight Facility, Wallops Island, Va. on Sunday, Sept. 23 after flying over Tropical ...

The RQ-4 Global Hawk is a high-altitude, long-endurance unmanned aircraft system with an integrated sensor suite that provides intelligence, surveillance and reconnaissance, or ISR, capability ...

The Largest, Most Advanced, and Most Expensive UAV Ever Built on Interesting Engineering. Explore the latest in technology!

The Global Hawk is a high-altitude drone used for surveillance and reconnaissance. Different blocks of the aircraft have varying capabilities and equipment. The US military plans to retire the ...