The Boeing X-37B, the Orbital Test Vehicle That Lands on a Runway, and the Autonomous Space Plane That Has Logged More Than Twenty-Two Hundred Days in Orbit Without Telling Anyone What It Was Doing Up There
The Boeing X-37B has logged over 2,200 days in orbit across seven classified missions, landing itself on a runway - and its guidance systems foreshadow where civil aviation autopilots are headed.
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