So I decided on science when I was in college.

So I saw many planets, and they looked just a little bit brighter than they do from Earth.

Even though NASA tries to simulate launch, and we practice in simulators, it's not the same - it's not even close to the same.

Astronauts will remain the explorers, the pioneers-the first to go back to moon and on to Mars. But I think it's really important to make space space available to as many people as we can. It's going to be a while before we can launch people for less than $20 million a ticket. But that day is coming.

Because I was a tennis player, Billie Jean King was a hero of mine.

I didn't really decide that I wanted to be an astronaut for sure until the end of college.

So most astronauts are astronauts for a couple of years before they are assigned to a flight.