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Space Shuttle Challenger disaster


Space Shuttle Challenger Accident Investigation (1986)


NASA Space Shuttle Challenger Explosion Disaster - 73 Seconds Into Flight January 28 1986


Space Shuttle Columbia Disaster Pt 2: Final descent - BBC


FS2004/FSX - Breaking Apart (Space Shuttle Challenger disaster)


Challenger Space Shuttle Disaster (STS-51L)

On January 28, 1986, the NASA shuttle orbiter mission STS-51-L and the tenth flight of Space Shuttle Challenger (OV-99) broke apart 73 seconds into its flight, killing all seven crew members, which consisted of five NASA astronauts and two payload specialists. The spacecraft disintegrated over the Atlantic Ocean, off the coast of Cape Canaveral, Florida, at 11:39 a.m. EST. The disintegration of the vehicle began after a joint in its right solid rocket booster (SRB) failed at liftoff. The failure was caused by the failure of O-ring seals used in the joint that were not designed to handle the unusually cold conditions that existed at this launch. The seals' failure caused a breach in the SRB joint, allowing pressurized burning gas from within the solid rocket motor to reach the outside and impinge upon the adjacent SRB aft field joint attachment hardware and external fuel tank. This led to the separation of the right-hand SRB's aft field joint attachment and the structural failure of the external tank. Aerodynamic forces broke up the orbiter.
  • O-ring concerns 

  • Pre-launch conditions 

  • January 28 launch and failure 

  • Aftermath 

  • Investigation 

  • NASA and Air Force response 

  • Legacy 

  • Media