It's time for another "This Week in History" and for this episode, we are doing something special: focusing on one event. On the 38th anniversary of the Challenger Disaster, Jim Ward is on the show to let us know what was happening in the lead up to the tragic accident that took the lives of seven astronauts, including the first "Teacher in Space," Christa McAuliffe.

Want to learn more about the Challenger disaster? Check out "Truth, lies, and O-rings inside the space shuttle Challenger disaster" by Allan McDonald, available instantly as an eBook or Audiobook here: http://tinyurl.com/mcpac-mcdacd