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X-15 flight 90, the NASA test that accidentally crossed the edge of space and made a civilian astronaut
In July 1963, NASA’s X-15 was supposed to fly a carefully planned high-altitude test. Instead, small deviations pushed it past the Kármán line, turning Joe Walker into the first American civilian in ...
An important part of data collection for the United States space program, the North American X-15 had astonishing performance utilizing the technology of the 1950s and 60s. The North American X-15 was ...
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