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.
40 years ago on Jan. 28, 1986, 7 spacefarers were killed when shuttle Challenger exploded midair after launching from Kennedy Space Center in Florida
Marking three decades since the explosion of the Challenger claimed the lives of its seven-member crew, we recap the incident, the investigation, and the lessons learned on the path to space and beyond.