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Space Shuttle
Mission STS-073
STS-51L Challenger wreckage remains and boxes of debris being lowered into abandoned Minuteman Missile Silos at Complex 31 on Cape Canveral Air Force Station.
Teachers in Space project logo for mission STS 51-L
Christa McAuliffe and Barbara Morgan, Teacher in space primary and backup crew members for Shuttle Mission STS-51L. This mission ended in failure when the Challenger orbiter exploded 73 seconds after launch on January 28, 1986.
Hurtling out of the conflagration at 78 seconds are the Challenger's left wing, main engines (still burning residual propellant) and the forward fuselage (crew cabin).
Overall view of the audience at the memorial service at JSC for the Crew of STS 51-L.
At 58.778 seconds into powered flight, a large flame plume is visible just above the SRB exhaust nozzle indicating a breach in the motor casing.
The bright luminous glow at the top is attributed to the rupture of the liquid oxygen tank just above the SRB/ET attachment. At this point, Challenger is completely engulfed in a firey flow of escaping liquid propellant.
The STS-51L Challenger flight crew emergency egress training in the slide wire baskets. From left to right they are: Mission Specialist, Ronald McNair, Payload Specialist, Gregory Jarvis, Teacher in Space Participant, Christa McAuliffe. Directly behind them: Mission Specialist Judy Resnik and Mission Specialist, Ellison Onizuka.
Christa McAuliffe, STS 51-L payload specialist, has homework of her own to do to prepare for the STS 51-L flight.
The STS-51L crewmembers are: in the back row from left to right: Mission Specialist, Ellison S. Onizuka, Teacher in Space Participant Sharon Christa McAuliffe, Payload Specialist, Greg Jarvis and Mission Specialist, Judy Resnik. In the front row from left to right: Pilot Mike Smith, Commander, Dick Scobee and Mission Specialist, Ron McNair.

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All images © NASA (Unless Otherwise Noted). Used by permission.

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