Endeavour moves to launch pad
Space shuttle Endeavour arrived at its launch pad early Wednesday for a flight to send teacher-turned-astronaut Barbara Morgan and six crewmates to the international space station.
It's been a nearly five-year wait for Endeavour, and the shuttle has nothing on Morgan: She's been waiting 22 years.
In 1985, Morgan was picked as Christa McAuliffe's backup to become the first teacher in space under a special NASA program.
Then the shuttle Challenger carrying McAuliffe exploded shortly after liftoff in 1986, and Morgan returned to teaching. In 1998, she was selected as a full-fledged astronaut.
