Once you've been first, it cannot be done again. Not by you, not by anyone else.

I am definitely not rich.

One of the major problems with long-term deep space human flight is the requirement for radiation shielding.

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.

To me, money is a commodity that a person must have to function, not a goal in itself.

Drive over to the nearest airport, and enroll in flight classes. You will experience the joy of freedom in the air above, as you study the mechanics of how this is made possible by understanding the construction, the laws of motion, the air that can provide lift when it is moved by propulsion through the air, and stay above the gravity pulling the airplane back down to earth.

When you're in a spacecraft, you need to know what things you can touch and what things you shouldn't touch!