I want to know: How does a space suit on Mars work? Show me how it is pressurized, and how it is cooled. What's the glove design? None of that stuff can be bought off the rack. It does not exist. You can't just go to SpaceMart and buy those things.
Chris HadfieldIt’s not enough to shelve your own competitive streak. You have to try, consciously, to help others succeed.
Chris HadfieldThe Moon has given us months, tides and a destination that ever-beckons. It's time we build a rocket and go to stay.
Chris Hadfield