The space shuttle is a better and safer rocket than it was before the Challenger accident.

For a long time, society put obstacles in the way of women who wanted to enter the sciences.

The view of earth is absolutely spectacular, and the feeling of looking back and seeing your planet as a planet is just an amazing feeling. It's a totally different perspective, and it makes you appreciate, actually, how fragile our existence is.

NASA has to approve whatever we wear, so there are clothes to choose from, like space shorts - we wear those a lot - and NASA T-shirts.

The food isn't too bad. It's very different from the food that the astronauts ate in the very early days of the space program.

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.

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