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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NASA freezes plan to move space shuttle Discovery from Smithsonian home
NASA has put the brakes on a politically charged plan to uproot Space Shuttle Discovery from its longtime home at the Smithsonian’s Steven F. Udvar-Hazy Center in Virginia. The agency’s new leadership has frozen work on the relocation,