Welcome Home, Columbia 6343498 Shuttle Program at Astronautix Image credit: NASA Image source: National Archives
Yeager Goes Mach 2 6387294 Bell X-1 at Wikipedia Image credit: U.S. Air Force Art Collection Image source: National Archives
Return From Mach 6 source North American X-15 at Astronautix Image credit: Mike Machat Image source: SDASM Archives
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