a shuttle explosion changed NASA
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Wednesday marked 40 years since the space shuttle Challenger accident that killed seven crew members. The mission was not just to launch satellites but to launch the first teacher in space.
The space shuttle Challenger explosion was a defining moment of the 1980s. Whether you were watching on TV or in person, chances are, you remember exactly where you were and how you felt.
Forty years after the Challenger disaster, NPR explores the engineers' last-minute efforts to stop the launch, their decades of guilt and the vital lessons that remain critical for NASA today.
Forty years after the Challenger disaster, the tragedy is remembered not only for the seven lives lost, but for the engineer who tried to stop the launch and was ignored.
For many in New Hampshire, the memory of the Space Shuttle Challenger disaster is still vivid, those who were in Florida for the launch say they will never forget it.