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Roger Boisjoly

The crew for the Space Shuttle Challenger flight 51-L leaves their quarters for the launch pad, Jan. 27, 1986, at the Kennedy Space Center in Florida. Front to back are Commander Francis Scobee, Mission Spl. Judith Resnik, Mission Spl. Ronald McNair, Payload Spl. Gregory Jarvis, Mission Spl. Ellison Onizuka, teacher Christa McAuliffe, and pilot Michael Smith. (AP Photo/Steve Helber)

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)