40th Anniversary of Space Shuttle Challenger Explosion
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NASA's space shuttle Challenger completed 10 missions before it broke apart during a launch in 1986, killing seven astronauts.
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Challenger at 40: The disaster that changed NASA
How a cold morning, failed O-rings, and flawed decision-making led to tragedy Forty years ago, Space Shuttle Challenger disintegrated 73 seconds into its flight, killing its crew of seven and exposing the management culture and decision-making process that led NASA to launch on a freezing January day.
This week marks 40 years since the Challenger disaster, a heartbreaking moment that unfolded just 73 seconds after liftoff, capturing the attention of millions across the nation.