With Myke on vacation this week, Stephen is joined by Brett Kelly to talk about the space shuttle Challenger's last flight, back in 1986. (The day Stephen was born, actually.)

Space Shuttle Challenger disaster - Wikipedia

Space Shuttle Challenger - Wikipedia

Space Shuttle Solid Rocket Booster - Wikipedia

Space Shuttle external tank - Wikipedia, the free encyclopedia

Space Shuttle Challenger launch decision - Wikipedia

STS-51-L Mission timeline - Wikipedia

Christa McAuliffe - Wikipedia