Marc Garneau, Roberta Bondar, Julie Payette, Robert Thirsk, Chris Hadfield, and more recently, Guy Lalibert , the founder of Cirque de Soleil, all have one thing in common: they're some of the very few Canadians who have been in space. The launch of a spaceship is terribly exciting. That's why thousands of people come to watch. They laugh, cheer, and applaud as the rocket rises. They see the smoke, steam, and white-hot fire as millions of...