It has been 40 years since NASA launched the first dedicated Department of Defense Space Shuttle mission, after which engineers spotted O-ring seal defficiencies that would doom Challenger a year ...
Thirty years ago on January 28, seven astronauts were killed when the Challenger space shuttle exploded just 73 seconds after launch. One of those seven astronauts was Christa McAuliffe.
Jan. 28, 2021, marked the 35th anniversary of the space shuttle Challenger accident that claimed all seven lives on board in 1986. This photo provided by NASA shows the crew of space shuttle ...
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