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.

I do a lot of running and hiking, and I also collect stamps - space stamps and Olympics stamps.

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

After the Challenger accident, NASA put in a lot of time to improve the safety of the space shuttle to fix the things that had gone wrong.

We can see cities during the day and at night, and we can watch rivers dump sediment into the ocean, and see hurricanes form.

Once you are assigned to a flight, the whole crew is assigned at the same time, and then that crew trains together for a whole year to prepare for that flight.

I would like to be remembered as someone who was not afraid to do what she wanted to do, and as someone who took risks along the way in order to achieve her goals.