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What’s your favorite thing to do in zero G that you can’t do on Earth?

Simply fly — to push off and glide magically to the other end of the Station. It makes me smile to myself, every time.

How hard is it to sleep out there in space?

I love sleeping weightless. No mattress, no pillow, no sore shoulder, no hot spots. Just relax every muscle in your body and drift off to sleep.

How long did it take you to learn how to maneuver in zero gravity? Are you much better at it now than when you originally came aboard the ISS?

I’m still learning! But sometimes now, I am graceful. I feel like an adapted ape swinging through the jungle canopy … until I miss a handrail and crash into the wall.

What is the scariest thing you have seen [while] in space?

I watched a large meteorite burn up between me and Australia, and to think of that hypersonic dumb lump of rock randomly hurtling into us instead sent a shiver up my back.

What is the biggest danger you face while living in space?

The biggest danger is launch — all that power and acceleration. Once we survive that, it’s just a steady threat of radiation, meteorite impacts and vehicle system failure like fire or ammonia breakthrough.

Did you notice any activity [of the meteor that exploded over the Chelyabinsk region of Russia last week] from your vantage point?

We didn’t see the meteorite that did all the damage in Russia, as we were on the other side of the Earth. But I see small ones burn up between ISS and the Earth every day.

What time zone do you live by? Do you switch off the lights at “night?”

We live on Greenwich time, UTC, same as London, England. We shut off most lights at bedtime — it feels right to do it.

How many sunrises and sunsets do you experience in an Earth day?

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