Chris Hadfield Quotes

We were only on orbit a little over two days, so we had no adverse effects from being weightless.

The microgravity or the very, very low amount of gravity that we have up in space forces some changes in different processes. It forces changes in us as human beings.

Adaption of the human body in space is not yet mastered. As soon as you hit space, you feel your body is going through a period of mutation. There's no blood in your head; you have a hard time swallowing. We're not born to naturally be in space.

The reason space missions need artificial gravity is clear: humans simply did not evolve to live in zero gravity.

Gravity is a really heavy force and you don't realize how heavy it is until you haven't felt it for six and a half months.

The one thing we can't really train for is weightlessness, real weightlessness. It's a ton of fun. It's pure Newtonian physics. You push in one direction, you go in the opposite direction with an equal force.

Zero G and I feel fine.

Everyone who's been in space would, I'm sure, welcome the opportunity for a return to the exhilarating experiences there.

Basically, most good science in space flight has to do with the behavior of the human body in space. That is where we are lacking info, and where info can only be obtained by flying in space.

A lot of scientists on Earth think of things that they could do in zero g. Things like the way metals cure, for example, and the way fluids react in space can tell us a lot about some of the unknowns we have on Earth.

Gravity pulls our bodily fluids down, like water in a glass goes to the bottom part of a glass. In space, the water doesn't stay in the bottom of the glass. It distributes itself evenly over time throughout the entire volume of the glass.

NASA asked me to create meals for the space shuttle. Thai chicken was the favorite. I flew in a fake space shuttle, but I have no desire to go into space after seeing the toilet.

I still dream about being on the space station with the feeling of being weightless. The weightlessness is the most amazing, relaxing and natural feeling.

Life as an astronaut in space is a very interesting one. There are things we all take for granted here on earth, like gravity, that can make things a bit challenging. One of the fun things about getting here is the zero gravity and floating around. But it also makes things very difficult.

Now, I've never flown in space; but the folks who have say that on landing day, you know, you've just spent maybe a week and a half, sometimes two weeks in orbit and you're used to the things happening slowly in space.

When you talk to crews that went to Mir or have gone up to International Space Station, they say that you go through different phases of adaptation or getting used to the space environment.

A zero-gravity flight is a first step toward space travel.

That's really why I want to go to space - I want to be weightless for so long that it gets boring.

Up in space we don't have a huge wardrobe.

In space, if you push, you are usually going somewhere, so staying on the treadmill was a challenge at first, even with the harness.

We try to keep it a normal day while we're up in space. You know, you don't want to change your time cycle too much, so we just keep it normal. And so, about 5 or 6 o'clock at night, after we finish working, we knock it off by having prerecorded shows that we watch sometimes through the computer while we're eating dinner.

Sleeping here is harder here in space than on a bed because the sleep position here is the same position throughout the day. You don't ever get that sense of gratifying relaxation here that you do on Earth after a long day at work.

I've flown in space four times now, so it's going to be hard in that respect, but I certainly look forward to going back to Earth. I've been up here for a really long time and sometimes, when I think about it, I feel like I've lived my whole life up here.

Adjusting to space is easier than adjusting to Earth for me.

On Earth, men are seen as superior because of their physical strength, but it means nothing in space, where there is no gravity.