Art & Literature - UNSUNG HEROES: (Sofia of the Clue Crew at the Johnson Space Center in Houston) This NASA flight director of the 1960s & '70s wrote the book "Failure Is Not an Option"

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UNSUNG HEROES: (Sofia of the Clue Crew at the Johnson Space Center in Houston) This NASA flight director of the 1960s & '70s wrote the book "Failure Is Not an Option"

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