"Some of the senior people, the very senior astronauts, shook my hand and said, 'K.C., you did a great job. Don't let anyone tell you different.'"

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To become an astronaut is not a question of being the best at something or things coming easy to you, but it's being a person that can work with others and not give up. And, for me, that was part of it too.

— Michael J. Massimino