The vast majority of the shuttle program was a success. We learned so much about how a reusable spacecraft interacts with its environment, how it ages-and what to design next time.

The atmosphere almost looks like an eggshell on an egg, it's so thin. We know that we don't have much air - we need to protect what we have.

Because of [Amelia Earhart], we had more women available to fly in the 1940's to help us get through World War II. And because of these women, women of my generation are able to look back and say, 'Hey, they did it. They even flew military airplanes, we can do it, too.'

I don't think of myself as being a woman and having anything to prove.

We want to explore. We're curious people. Look back over history, people have put their lives at stake to go out and explore ... We believe in what we're doing. Now it's time to go.

My daughter just thinks that all moms fly the Space Shuttle

The vast majority of the shuttle program was a success. We learned so much about how a reusable spacecraft interacts with its environment, how it ages-and what to design next time.