And in your exploration to determine if there was water, what is the process by which you do that?

Neil Armstrong stood up last year when he, too, was worried that we might be sacrificing the future for the present.

I think setting the goal is terribly important for eliciting potential innovations.

I believe that the ultimate goal of NASA's human exploration program should be Mars.

If we truly intend to have a program of human exploration to some destination beyond low Earth orbit, there is a piece of the puzzle missing.

This cannot happen again.

Thank you for the opportunity to address the Committee today, and I look forward to any questions you have.

thank you very much, Senator Nelson, for inviting here because this is a spectacular result that we have a successful landing of Curiosity on the surface of Mars.

Well, we want to thank you. This is an exciting update. Congratulations again on making the country proud.

the value of competition is that instead of your rocket company being the only one in town, you get sharper, your prices get sharper if there is a competitor there.

I cannot say enough good things about Kay and her leadership and her passion for America's space program.

Just like we did in Apollo, which was an incremental mission, starting with Mercury, Gemini, Apollo, in an environment that we did not know anything about.