I don't have any nicknames.

I don't need any nicknames.

I liked math - that was my favorite subject - and I was very interested in astronomy and in physical science.

I think eventually private enterprise will be able to send people into orbit, but I suspect initially it's going to have to be with NASA's help.

All adventures, especially into new territory, are scary.

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.