I Don't Have Any Nicknames.

One Thing I Probably Share With Everyone Else In The Astronaut Office Is Composure.

It's No Secret That I've Been Reluctant To Use My Name For Things.

It Takes A Couple Of Years Just To Get The Background And Knowledge That You Need Before You Can Go Into Detailed Training For Your Mission.

My Background Is In Physics, So I Was The Mission Specialist, Who Is Sort Of Like The Flight Engineer On An Airplane.

I Felt Very Honored, And I Knew That People Would Be Watching Very Closely, And I Felt It Was Very, Very Important That I Do A Good Job.