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The ISS orbits once every 90 [minutes], so that’s 16 sunrises and 16 sunsets.

How much privacy do you and the rest of the astronauts get while aboard the ISS? It doesn’t seem like there are many places you can go to be alone other than the bathroom.

I’m typing now in my ‘Sleep Station,’ a small padded room with a door, completely private, like a bedroom without the bed, and phone booth sized.

What do you shave with? If an electric razor, how do you keep the bits of hair from floating all over the place and getting breathed in?

I shave with cream and a standard multi-blade, just wipe it on a cloth every time, works fine.

How long does it take to readjust from living in zero gravity?

About 1 day back on Earth for every day weightless. Some things come back quicker, but bones and muscles take time to truly recover.

You mentioned on Twitter that the ISS is peppered with meteors but has armor. Do you hear them hit? What about things like the solar panels? They look delicate.

Sometimes we hear pings as tiny rocks hit our spaceship, and also the creaks and snaps of expanding metal as we go in and out of sunlight. The solar panels are full of tiny holes from the micro-meteorites.

What do you think the next step for space exploration should be? Do you think sending a manned mission back to the moon to establish a moon base is feasible at this point?

As a species, we have always taken the very best of our technology and used it to take us to the furthest reaches of our knowledge — the horse, the wheel, the sailing ship, steamship, propellor, jet, rocket, Space Station. Yes, we will establish a permanent base on the Moon and beyond, but when depends on inventions not yet made.

My guess is that power generation is the primary obstacle, and fossil fuels and even solar power won’t be enough. Meanwhile, the Space Station is the crucible where space exploration technology is designed and tested. When we go further out, it will be heavily indebted to the pedigree of space hardware proven on ISS.

Do you think vacationing in space will become a reality for the average person? If so, when?

We need better engines for spaceflight to be safer and simpler, and thus cheaper. Like the difference to cross the Atlantic in a prop [versus] a jet airplane.

It seems with the scrapping of the Space Shuttle program, people’s interest in spatial exploration has been largely dwindling. What do you think NASA, other space agencies and astronauts need to do to keep people informed and interested in the science of space exploration? 

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