![Christa McAuliffe and Barbara Morgan, Teacher in space primary and backup crew members for Shuttle Mission STS-51L. This mission ended in failure when the Challenger orbiter exploded 73 seconds after launch on Christa McAuliffe and Barbara Morgan, Teacher in space primary and backup crew members for Shuttle Mission STS-51L. This mission ended in failure when the Challenger orbiter exploded 73 seconds after launch on](https://c8.alamy.com/zooms/6/4a6e14210da34488883943b62838eb3a/2f4e90h.jpg)
Christa McAuliffe and Barbara Morgan, Teacher in space primary and backup crew members for Shuttle Mission STS-51L. This mission ended in failure when the Challenger orbiter exploded 73 seconds after launch on
Barbara Morgan and Christa McAuliffe watch the STS 61-A launch of Challenger — Google Arts & Culture
![Barbara Morgan was the back-up to Christa McAuliffe in the "Teacher in Space" program. After McAuliffe perished in the Challenger disaster, Morgan was inspired to become an astronaut and was eventually selected Barbara Morgan was the back-up to Christa McAuliffe in the "Teacher in Space" program. After McAuliffe perished in the Challenger disaster, Morgan was inspired to become an astronaut and was eventually selected](https://i.imgur.com/o4ka9cd.jpg)