The space shuttle was designed, at least in part, to broaden our knowledge of the universe. To scientists, the vehicle was a tool; to engineers, it was their creation.

If we're going to complete the space station, we're going to need the shuttle. It's going to take a lot of resources.

The space shuttle is a better and safer rocket than it was before the Challenger accident.

I slept just floating in the middle of the flight deck, the upper deck of the space shuttle.

On a standard space shuttle crew, two of the astronauts have a test pilot background - the commander and the pilot.

Not until the space shuttle started flying did NASA concede that some astronauts didn't have to be fast-jet pilots. And at that point, sure enough, women started becoming astronauts.