I find myself looking around for other new, interesting opportunities to dive into.

I liked math - that was my favorite subject - and I was very interested in astronomy and in physical science.

It's no secret that I've been reluctant to use my name for things.

Studying whether there's life on Mars or studying how the universe began, there's something magical about pushing back the frontiers of knowledge. That's something that is almost part of being human, and I'm certain that will continue.

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

I've spent my whole life not talking to people, and I don't see why I should start now.

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.