"Nobody ever asks who was the seventh person on the Moon. The only thing they know is who's number on..." — Buzz Aldrin

Growing up, I was fascinated with Buck Rogers' airplanes. As I began to mature in World War II, it became jets and rocket planes. But it was always in the air.

Exploring and colonizing Mars can bring us new scientific understanding of climate change, of how planet-wide processes can make a warm and wet world into a barren landscape. By exploring and understanding Mars, we may gain key insights into the past and future of our own world.

People come up to me and say, 'It's too bad the space program got canceled.' This is not the case, and yet that is what most of the public thinks has happened.

You can tell I'm not too bashful about some of my feelings.