look up any word, like ratchet:

1 definition by TwentyFive

 
1.
One of the original four space shuttles built by NASA in the early 1980s, which also included Columbia, Atlantis, and Discovery.

Broke apart 73 seconds after liftoff on January 28, 1986, killing all seven crewpeople aboard, including schoolteacher Christa McAuliffe.
Everyone born prior to the Reagan Administration knows where they were when they heard the Challenger has exploded. It was the most tragic disaster related to space exploration the world had ever seen.
by TwentyFive January 28, 2011
19 3