During the divorce process, I lived alone and tended to get extremely down on myself.

Save the taxpayer's money by canceling the Ares 1 and V.

Unless we are able to commit to a permanent growing settlement [on Mars], then I don't think just going there with humans and coming back is worth doing. The expense of planning to come back is like the people who left Europe to come to America and then to turn around and go back to Europe, it really doesn't make any sense at all.

Most people never believed in the real possibility of going to the moon, and neither did I until I was in my twenties.

In space, you don't get that much noise. Noise doesn't propagate in a vacuum.

Astronauts are not superhuman. They lead ordinary lives and have varied personalities.

We feel that this stands as a symbol of the insatiable curiosity of all mankind to explore the unknown.