As I hurtled through space, one thought kept crossing my mind - every part of this rocket was supplied by the lowest bidder.

If we could do something that enhances the body's immune system here on Earth, it would be a tremendous step forward in the fight against disease and cancer and other things.

As I hurtled through space, one thought kept crossing my mind - every part of this rocket was supplied by the lowest bidder.

We had a lot of confidence that there was going to be a successful mission. We weren't off on some suicide effort, certainly [with Friendship 7].

That was a real fireball.

Because now, you know, it's going to be a number of years yet before we have our own new boosters and new spacecraft to go to our own International Space Station and proceed with all the research that we spent $100 billion putting up there to give us that research capability for the future for people right here on Earth.

I still have my [flight] license and I can still pass a flight physical.