In all of the movie portrayals, a spacewalking suit seems sort of insignificant, like a pair of shorts and a T-shirt. No one thinks much about it. But it's a spaceship, not a spacesuit, an entire life-support mechanism that's incredibly complex and cumbersome. It's very difficult to put on and off. You have to run it the whole time you are wearing it, and it redefines how you move. It's like if you put on a wetsuit and a snowmobile suit and froze yourself solid and then tried to go and do work.
You can't just ignore spacewalking suit; it partially defines the experience. So maybe the most difficult thing is becoming completely attuned to efficiently wearing a garment that is so inhibiting to motion, and making it look effortless, as if it's the most natural thing to be out there on a spacewalk.
Scientific literacy is one of the underpinnings of everything I do. It's why I work with schools. It's why I teach at university. I do a lot of outreach to try and improve general scientific literacy, but the core of all scientific literacy is just literacy.
If you haven't learned to ride a bike by the time your peer group has, then suddenly it's an embarrassment and you'll avoid opportunities where you're expected to ride a bike. And then it starts shaping your behaviour. Reading is much subtler, but much more destructive if you have not - for whatever reason - learned to read by the time you should.
The emotional build-up and anticipation if you travel at Christmas can make it harder to enjoy a trip. I think sometimes it is better to travel outside of conventional holiday times for that reason.
Imbibe three or four times as much water as you think you need and skip at least one, if not two meals, when you are travelling. You should arrive at your destination feeling slightly hungry and your digestive system reset.
Do your homework in advance about the actual travel details so transportation issues do not define your holiday.
Most budget airlines anywhere in the world are going to leave you dissatisfied after using them.
My favourite city is Moscow, because of its history, which I find fascinating. As I learned to speak Russian, it made it even more interesting.
My favourite city for nightlife is Toronto, as it has such a multicultural feel, with so many different restaurants and theatres.
Doing a space walk. It is one of the most rare human experiences. To leave your spaceship and go outside, so that you are alone in the universe with Earth distant and the universe around you. That is amazing.
There is a sunrise or a sunset from space every 92 minutes so there is an incredible amount of beauty to see from up there.
The Bahamas are gorgeous. The deep trench in the ocean floor called the Tongue of the Ocean, which comes between the islands, is the most beautiful deep indigo colour.
To me, it's not about being anywhere, but being able to change my perceptions and experience something new.
From space, the Bahamas is the most beautiful place on Earth.
It's good to have a fear of heights. I mean, it's kind of crazy not to because if you just lean out a little bit and there's a gust of wind or somebody bumps you or something and you fall, you're splat.
When I stand on the edge of a cliff or right at the edge of a building or something, it's one of the few things that gives me kind of a deep, overwhelming, irrational fear where it affects my physiology.
I'm not a wealthy person and I don't think that I would be able to prioritize that much money to go for a ride to a place that I have already lived. But if the price comes down or I win a lottery or something, why not?
"What's the next thing that's going to kill me?" is a mantra for pilots and astronauts.
Spaceflight isn't just about doing experiments, it's about an extension of human culture.
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