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

I suggest that going to Mars means permanence on the planet - a mission by which we are building up a confidence level to become a two-planet species.

Mars is far more attractive as an outpost colony for earthlings than the moon is.

I think we need to move to the moons of Mars and learn how to control robots that are on the surface. It's not the impatient way of getting there, but Mars has been there a long time.

I was lucky enough to have been born on this planet earth, in this admirable country of the United States of America.

Many say exploration is part of our destiny, but it's actually our duty to future generations and their quest to ensure the survival of the human species.

Fear and worry are emotions that cloud the mind from being able to think clearly, to remember what the procedures are to deal with that emergency.