Only one man got to fly NASA's X-15 rocket-powered plane & the Space Shuttle

Flying either the rocket-powered X-15 or Space Shuttle would already be pretty impressive, but one man actually flew both.
insider.si.edu

X-15 : the world's fastest rocket plane and the pilots who ushered in the space age / John Anderson, Richard Passman

"The X-15, which flew from 1959-1970, is still the most advanced research aircraft ever developed and flown, and hangs in a place of honor in the Smithsonian's Air and Space Museum. Its test pilots ...
The Aviationist

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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The X-15 Hit Mach 6.7 and Put Every Military on Earth On Notice

Key Points and Summary - In 1967, USAF Major "Pete" Knight set a world speed record that remains "unbroken" 68 years later. -Flying the X-15A-2 rocket plane (Flight 188), Knight reached an astonishing ...