The two solid rocket boosters flew in different directions as the external fuel tank became a fireball.(AP: Bruce Weaver / File) Forty years ago, the Challenger space shuttle disintegrated just after ...

(CNN) - Wednesday marks the 40th anniversary of the Challenger space shuttle explosion. It was a moment of collective grief on Jan. 28, 1986, when the space shuttle exploded during a live broadcast.

On February 1, 2003, the space shuttle Columbia was reentering Earth's atmosphere after a two-week routine mission when it ...

McAuliffe was a high school teacher from New Hampshire who was to be the first civilian and American teacher in space. She was selected as part of the Teacher in Space program. Her inclusion on the ...