If they asked me if I wanted to go into space tomorrow, I'd do it in a heartbeat. On the other hand, if they asked me if I wanted to go into training for three years and then go into space again, I'd probably say no.

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

The rockets light! The shuttle leaps off the launch pad in a cloud of steam and a trail of fire.

I think eventually private enterprise will be able to send people into orbit, but I suspect initially it's going to have to be with NASA's help.

When you're getting ready to launch into space, you're sitting on a big explosion waiting to happen.

Science is fun. Science is curiosity. We all have natural curiosity. Science is a process of investigating. It's posing questions and coming up with a method. It's delving in.

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