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40 years ago, classified Shuttle mission foreshadowed Challenger's fatal flaw
It has been 40 years since NASA launched the first dedicated Department of Defense Space Shuttle mission, after which engineers spotted O-ring seal defficiencies that would doom Challenger a year ...
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Challenger disaster: Remembering the tragic space shuttle explosion on January 28, 1986, and its lasting impact
The Challenger disaster, a tragic day in space exploration history, took place on January 28, 1986. Just 73 seconds after launch, the Space Shuttle Challenger exploded, leading to the loss of ...