Am I willing to go to Mars? Yes, but I'm not willing to spend nine months getting there, then wait 18 more months until the planets align to come home.

We don't have the capability today to put a human being in space of any kind, shape or form, which is absolutely, totally unacceptable when we got the greatest flying machine in the world sitting down at Kennedy in a garage there with nothing to do.

Neil Armstrong was probably one of the most human guys I've ever known in my life.

I was a child of World War Two . I saw films of pilots taking off from aircraft carriers and decided that was the only thing I wanted to do. And it had to be flying from sea carriers. Airfields were not enough.

Nobody can take those footsteps I made on the surface of the moon away from me.

Another hundred years may pass before we understand the true significance of Apollo. Lunar exploration was not the equivalent of an American pyramid, some idle monument to technology, but more of a Rosetta stone, a key to unlocking dreams as yet undreamed.

The mass gross absence of sound in space is more than just silence.