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When we meet people who are astronauts or deal in astronomy, it's always really fascinating.

I am not a brave man... I do not have the right stuff. Astronauts are really a cut above.

Being in space, I'm really looking forward to working with this team of folks that I'm with.

I cannot join the space program and restart my life as an astronaut, but this opportunity to connect my abilities as an educator with my interests in history and space is a unique opportunity to fulfill my early fantasies.

Although as a boy I had dreamed about going into space, I had completely forgotten about that until one day I received a call from an astronaut, who suggested that I should join the program.

Any astronaut can tell you you've got to do everything you can to learn about your life support system and then do everything you can to take care of it.

Astronauts are very professional and when they're preparing for launch, they prepare for it as the most serious endeavor of our lives.

My odyssey to become an astronaut kind of started in grad school, and I was working, up at MIT, in space robotics-related work; human and robot working together.

As an astronaut, when you're getting ready to go out of that hatch, you know that's the pinnacle of both your career and your life. The view completely blows you away. The real challenge is getting past the excitement and getting focused and down to work.

Fortunately, I got called down to NASA for an interview. And one thing led to the next, and one day I got that call. I've been here about seven years now and am really enjoying it.