On January 28, 1986, NASA space shuttle orbiter Challenger lifted off into the clear blue skies over Florida on mission STS-51L, carrying a crew of seven, including teacher Christa McAuliffe. Just seventy-three seconds into the launch, a massive explosion tore Challenger apart. This newly revised edition of Teacher in Space tells the story of how McAuliffe graduated from her role as a much-loved high school teacher to occupying...