Nobody ever asks who was the seventh person on the Moon. The only thing they know is who's number one and who's number two. Does anybody know who the last man was?

I think humans will reach Mars, and I would like to see it happen in my lifetime.

You need propellants to accelerate toward Mars, then to decelerate at Mars, again to re-accelerate from Mars to Earth, and finally to decelerate back at Earth. Accordingly, the mass of these required propellants, in short, drives our need for innovative launch vehicles.

In Mars, we've been given a wonderful set of moons where we can send continuous numbers of people.

We need to have people up there who can communicate what it feels like, not just pilots and engineers.

America must dream again, and have the faith to achieve the dream.

By venturing into space, we improve life for everyone here on Earth - scientific advances and innovations that come from this kind of research create products we use in our daily lives.