When you're getting ready to launch into space, you're sitting on a big explosion waiting to happen.

I never went into physics or the astronaut corps to become a role model. But after my first flight, it became clear to me that I was one. And I began to understand the importance of that to people. Young girls need to see role models in whatever careers they may choose, just so they can picture themselves doing those jobs someday. You can't be what you can't see.

I suggest taking the high road and have a little sence of humour and let things roll off your back. I think that's very important.

But even in elementary school and junior high, I was very interested in space and in the space program.

Ever been to Disneyland? That was definitely an E ticket!

But when I wasn't working, I was usually at a window looking down at Earth.

Our future lies with today's kids and tomorrow's space exploration.