Question

it was said that Columbia was good for _____ flights, whereas it was crashed while its _____space flight.
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Answer 1

The Space Shuttle Challenger disaster was a fatal incident in the United States space program that occurred on January 28, 1986, when the Space Shuttle Challenger (OV-099) broke apart 73 seconds into its flight, killing all seven crew members aboard. The crew consisted of five NASA astronauts, and two payload specialists. The mission carried the designation STS-51-L and was the tenth flight for the Challenger orbiter.

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