Sean Astin

My wife is very patient. On our honeymoon in 1992, we got a motor home and drove from L.A. to Idaho and then down the coast. I was running a lot, then so she would drop me off, drive six miles, park and wait for me.

I personally think going to Mars, if it takes two years or two and a half years, that's doable. Certainly, the first people who go there, that's going to be a big motivator, being first getting to Mars.