Lockheed Martin’s Skunk Works is developing the SR-72 Darkstar “Son of Blackbird,” a Mach 6+ intelligence, surveillance, ...

NASA's X-59 quiet supersonic research aircraft is seen during its "aluminum bird" systems testing at Lockheed Martin's Skunk Works facility in ...

The SR-72 “Darkstar,” Lockheed Martin’s secretive successor to the SR-71 Blackbird, aims for Mach 6+ hypersonic speeds for ...

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