The Teacher in Space program, with Christa McAuliffe selected for flight STS-51L and Barbara Morgan as back-up, ended when the Challenger orbiter exploded on January 28, 1986, and the crew -- including McAuliffe -- was lost.
Christa McAuliffe and Barbara Morgan, selected as primary and back-up astronauts for NASA's Teachers in Space program.
Courtesy NASASuggested Reading
Key Female Astronauts
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