Chris Hadfield Quotes

When you're in a spacecraft, you need to know what things you can touch and what things you shouldn't touch!

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.

Space is not a good place to mix foods because as soon as you take something out of the package, it becomes a flying object.

Any astronaut can tell you you've got to do everything you can to learn about your life support system and then do everything you can to take care of it.

Space architectures capable of supporting a permanent human presence on Mars are extraordinarily complex, with many different interdependent systems.

I think a Moon base is not necessary to get to Mars, but I think it will be helpful. It would give you a chance to develop and mature some systems; long duration, deep space stuff; and you're close enough to get some help, via radio from Earth.

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

Especially when I first really started to work with Kenneth and Franklin, who had been in space already. And so, they were able to talk about space and tell me a few things about how things would really happen.

The ability of the humans to not only function in space but be very functional when they arrive at their destination, those are the kinds of things we're learning from the science. Fuel transfer technologies and all the things we can learn about the space environment are all valuable to us for pressing on out.

Exploring Mars is a far different venture from Apollo expeditions to the moon; it necessitates leaving our home planet on lengthy missions with a constrained return capability.

I'm in favor of changing the destination of humans. There are a lot of manned missions that can be done, but not in the direction of the moon.

Trips to Mars, the Moon, even orbit, will require that we provide astrotourists with as many comforts from home as possible, including paying each other.

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.

My key aim is to get man on the surface of Mars by the mid-2030s.

'The Martian' may be fiction, but at NASA, we are working to make it a reality.

During my 8 years as chairman, I had the privilege to peer into the future to see dynamic citizen astronauts returning to and from the heavens which we can expect in the future.

I don't go along with going to Moon first to build a launch pad to go to Mars. We should go to Mars from Earth orbit. We have already been to the Moon; we've already practiced.

One of the major problems with long-term deep space human flight is the requirement for radiation shielding.

When we first get to space, we feel sick. Your body is really confused. You're dizzy. Your lunch is floating around in your belly because you're floating. What you see doesn't match what you feel, and you want to throw up.

We're not going to get humans to Mars until at least the mid-2030s, and the world is going to change by then.

Asteroids are deep-space bodies orbiting the Sun, not the Earth, and traveling to one would mean sending humans into solar orbit for the very first time. Facing those challenges of radiation, navigation and life support on a months-long trip millions of miles from home would be a perfect learning journey before a Mars trip.

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.

I've been approached to do some things with astronauts and the preparation that astronauts go through.

Back in the days of Apollo, sending humans to the moon was the only viable way to get the scientific data we wanted. But now, with our computer and robotics technology, there's very little an astronaut can do on Mars that a well-designed rover can't.

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