It takes a few years to prepare for a space mission.

Science is fun. Science is curiosity. We all have natural curiosity. Science is a process of investigating. It's posing questions and coming up with a method. It's delving in.

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

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.

So I decided on science when I was in college.

For quite some time, women at NASA only had scientific backgrounds.

It takes a couple of years just to get the background and knowledge that you need before you can go into detailed training for your mission.