1
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I think its human
nature to explore.

2
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I don't actually think you could
stop people from doing it, even

3
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if you'd like to.

4
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I liked chemistry when I was in
high school, and a lot of that

5
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came from one special teacher
who just thought it was the best

6
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thing in the whole world.

7
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I went to MIT for undergrad
and majored in chemistry.

8
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I got my PhD in polymer
science and engineering at the

9
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University of Massachusetts at
Amherst, and then I started my

10
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four years of active
duty in the U.S.

11
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Air Force, and that continued
for another 22 years.

12
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I was lucky enough to be
selected by NASA in 1992, in a

13
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class of 24 people.

14
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First class to have
international astronauts, and it

15
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was one of the most amazing days
of my life, when I was told that

16
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I was selected.

17
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I've loved a lot of the jobs
that I've gotten to do in

18
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between flights, everything
from payloads and habitability.

19
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That means checking out all the
different experiments that are

20
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going to go up and making sure
that the space station is going

21
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to be a place that people
really want to live.

22
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Do we need to have cabins?

23
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Do we need to have computers?

24
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Do we need to have
a place to be alone?

25
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How do we design a space station
that really works for people,

26
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for living?

27
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Part of what I think we try to
do in the space program, when we