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

Russia perhaps is still entertaining the possibility that the moons of Mars might have access to ice or water.

Every couple of years, we could dispatch people from Earth to Mars.

Instead of planning the retirement of the Space Shuttle program, America should be preparing the shuttles for their next step in space: evolving, not shutting them down and laying off thousands of people.

In my mind, public space travel will precede efforts toward exploration -- be it returning to the moon, going to Mars, visiting asteroids, or whatever seems appropriate. We've got millions and millions of people who want to go into space, who are willing to pay. When you figure in the payload potential of customers, everything changes.

I inherited depression from my mother's side of the family. Her father committed suicide. She committed suicide the year before I went to the moon.

If you want poets in space, you'll have to wait.