As astronauts know better than anyone else, risks, incidents, and mishaps are inevitable in the development of any high-performance vehicle. The emergence of supersonic flight during the 1940s and of the Century Series of fighters in the 1950s came with… — Leroy Chiao Copy Share Image
Later, I realized that the mission had to end in a let-down because the real barrier wasn't in the sky but in our knowledge and experience of supersonic flight. — Chuck Yeager Copy Share Image
