Having walked on the Moon, I know something about what we need to explore, really explore, in space.

What are you going to do with astronauts who first reach the surface of Mars and then turn around and rocket back home-ward? What are they going to do, write their memoirs? Would they go again? Having them repeat the voyage, in my view, is dim-witted. Why don't they stay there on Mars?

I'm not in favor of just taking short-term isolated situations and depleting our resources to keep our climate just the way it is today.

Absolutely the United States should lead in space, for the survival of the United States. It's inspiring for the next generation. If we lose leadership, then we'll be using Chinese capability to inspire Americans.

My Sunday mornings are spent in a recovery meeting in Pacific Palisades.

During the divorce process, I lived alone and tended to get extremely down on myself.

We could have human intelligence in orbit around Mars, building things there.