We must still think of ourselves as pioneers to understand the importance of space.

I think both the space shuttle program and the International Space Station program have not really lived up to their expectations.

Space travel for everyone is the next frontier in the human experience.

It's time to open the space frontier to citizen explorers.

Space tourism is a logical outgrowth of the adventure tourist market.

By refocusing our space program on Mars for America's future, we can restore the sense of wonder and adventure in space exploration that we knew in the summer of 1969. We won the moon race; now it's time for us to live and work on Mars, first on its moons and then on its surface.