2 / 8

Roger Boisjoly

High school teacher Christa McAuliffe greets family and friends at Manchester Airport, July 20, 1985. McAuliffe was announced on Friday as the school teacher that would be the first citizen to go up in space aboard the Space Shuttle. (AP Photo/Jim Cole)

Remembering the Challenger

The NASA lost seven of its own on the morning of

Jan. 28, 1986, when a booster engine failed, causing the Shuttle

Challenger to break apart just 73 seconds after launch. (Reuters)