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Roger Boisjoly

NASA's Space Shuttle Challenger (STS-51L) crewmembers are seen in this undated handout photo taken at Johnson Space Center in Houston, Texas. Left to right: Mission Specialist Ellison S. Onizuka, Pilot Mike Smith, Teacher in Space Christa McAuliffe, Commander Dick Scobee, Payload Specialist Greg Jarvis, Mission Specialist Ron McNair and Mission Specialist Judy Resnik.

Remembering the Challenger

January 28, 2013

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)