One day, people will be able to buy tickets to visit space.

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I loved flying as much as I thought I would and continue to fly aircraft.

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There were different challenges along the way. Certainly the food shortage was unpleasant.

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The most interesting thing was looking out the window and taking photographs of different places on Earth.

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Of course, you'll have to meet the physical and psychological demands. A space walk takes a lot of energy.

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Tinkering is something we need to know how to do in order to keep something like the space station running. I am a tinkerer by nature.

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Our task was doing maintenance and repairs to keep the station in a good state for the return of the shuttle flights and resumption of major ISS construction.

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One of my challenges was to try to photograph the Great Wall of China. And I did actually take some photos, but it was hard to discern the wall with the naked eye.

quote by Leroy Chiao
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But a lot of that kind of work is done pre-flight, coordinating efforts with the flight directors and the ground teams, and figuring out how you're going to operate together.

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I hope that China will continue with space exploration. It would be logical to have international co-operation. I hope that it will come about and that I can be involved in it.

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