Most people remember where they were when John F. Kennedy was assassinated, just as they remember how they felt when humans first set foot on the moon. Elements of both reactions are present in the story of Christa McAuliffe, the energetic young schoolteacher chosen to be the first civilian to go into space--and who died with her astronaut companions in the Challenger explosion of January 28, 1986. In this straightforward memoir, McAuliffe's...