Challenger astronauts from front left: Pilot Michael J. Smith, Commander Francis R. (Dick) Scobee and mission specialist Ronald E. McNair. From rear left: mission specialist Ellison Onizuka, teacher Christa McAuliffe, payload specialist Gregory Jarvis, and mission specialist Judith Resnik.
Challenger astronauts from front left: Pilot Michael J. Smith, Commander Francis R. (Dick) Scobee and mission specialist Ronald E. McNair. From rear left: mission specialist Ellison Onizuka, teacher Christa McAuliffe, payload specialist Gregory Jarvis, and mission specialist Judith Resnik. NASA AP
Challenger astronauts from front left: Pilot Michael J. Smith, Commander Francis R. (Dick) Scobee and mission specialist Ronald E. McNair. From rear left: mission specialist Ellison Onizuka, teacher Christa McAuliffe, payload specialist Gregory Jarvis, and mission specialist Judith Resnik. NASA AP

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January 22, 2016 5:35 PM

On Challenger anniversary, we need to remember lessons of tragic failures

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