It's easy to sleep floating around - it's very comfortable. But you have to be careful that you don't float into somebody or something!

Some astronauts sleep in sort of beds - compartments that you can open up and crawl into and then close up, almost like a little bedroom.

Yes, I did feel a special responsibility to be the first American woman in space.

The view of earth is spectacular from space. Most people imagine that when astronauts look out the window of the shuttle they see the whole earth like that big blue marble that was made famous by the flights that went to the moon. But the shuttle is much, much closer than those astronauts were. So we don't see the whole planet, the whole ball at once, we just see parts of it.

On both of my flights, everything went very well.

That's something that is almost part of being human and I'm certain that will continue.

The astronauts who came in with me in my astronaut class - my class had 29 men and 6 women - those men were all very used to working with women.