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Challenger Disaster Explosion Essay Preview: Challenger Disaster Explosion Report this essay Challenger Disaster It was on January 28, 1986 at 11:38 A.M. that the shuttle Challenger, NASA flight 51-L, the twenty-fifth shuttle flight, took off. It was the “Teacher in Space” mission. At lift-off, the temperature at ground level was 36o Fahrenheit, which was 15o.