Written and narrated by Jeffrey Kluger—author of Apollo 13 and Apollo 8—Countdown recreates the space crises that every astronaut has feared, and that an unlucky handful were forced to live.

On January 27, 1967, during a practice launch countdown, a flash fire erupted ... and collected more moon rocks on their missions. Apollo 13: Lunar Module Turned Lifeboat In April 1970, an ...