On Aug. 22, 1963, U.S. Air Force Captain Joe Walker flew an X-15 space plane higher than any pilot had ever flown before. Walker reached an altitude of over 67 miles (108 kilometers). That's about 5 ...
Add Yahoo as a preferred source to see more of our stories on Google. On July 17, 1962, the American test pilot Bob White broke the world record for the highest altitude flight. He took off from ...
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Going hypersonic: A look at the record-setting X-15
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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