Seven American spacefarers were killed in a tragic event 40 years ago today that has become widely known as the Challenger disaster.
NASA's space shuttle Challenger completed 10 missions before it broke apart during a launch in 1986, killing seven astronauts ...
Col. Eileen Collins was the first woman to pilot and command a NASA space shuttle. Collins commanded the first flight after the 2003 Columbia tragedy, which also experienced a foam-shedding issue.
Today marks the 39th anniversary of the Space Shuttle Challenger disaster (Mission STS-51-L), when the shuttle's seven astronauts were killed by an explosion.
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