America's first teacher in space Christa McAuliffe was aboard which spacecraft?

Christa McAuliffe was aboard the Space Shuttle Challenger for her historic mission as America's first teacher in space. The Challenger launched on January 28, 1986, but tragically broke apart 73 seconds into the flight, resulting in the loss of all seven crew members. McAuliffe's mission aimed to inspire students and demonstrate educational concepts from space.