Core memory: quiet classroom, teacher quickly turning off the broadcast and wheeling the tv cart down the hallway.
Reposted from
The Associated Press
On Jan. 28, 1986, the space shuttle Challenger exploded 73 seconds after liftoff from Cape Canaveral, killing all seven crew members, including schoolteacher Christa McAuliffe.
Read more about what happened on this date: t.ly/trWkw
Read more about what happened on this date: t.ly/trWkw
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