On January 28, 1986 the Space Shuttle Challenger exploded upon takeoff.  The Challenger carried a seven-person crew, including the first teacher involved in a space mission. 
This Saturday, it will be 26 years since the tragedy.  Pictured here are the brave astronauts of the Challenger Crew:
(Back row, left to right) Mission Specialist Ellison Onizuka, Teacher in Space Participant S. Christa McAuliffe, Payload Specialist Greg Jarvis, Mission Specialist Judy Resnick; (front row) Pilot Mike Smith, Commader Dick Scobee, and Mission Specialist Ron McNair.
Address to the Nation on the Challenger Explosion

On January 28, 1986 the Space Shuttle Challenger exploded upon takeoff.  The Challenger carried a seven-person crew, including the first teacher involved in a space mission. 

This Saturday, it will be 26 years since the tragedy.  Pictured here are the brave astronauts of the Challenger Crew:

(Back row, left to right) Mission Specialist Ellison Onizuka, Teacher in Space Participant S. Christa McAuliffe, Payload Specialist Greg Jarvis, Mission Specialist Judy Resnick; (front row) Pilot Mike Smith, Commader Dick Scobee, and Mission Specialist Ron McNair.

Address to the Nation on the Challenger Explosion