What about the ? ...People have done studies in outer space of astronauts and how long they could survive in the vacuum... That information say that … - Suzie Sheehy

I'd just like to leave you with my advice in choosing your career... [F]ind something that makes you sit up and think, "This is really important" or "This is fascinating" or "This is what I'm passionate about" and it can be in any area... Something like space might get you, of climate change... you might really like astronomy, or you might be more passionate about world hunger, injustices in the world, the availability of water, energy, health, aging, anything like that. Think about it, and do something about it. That's all, really, you need to do, and make a career out of doing something about it. Because if you do something that you're passionate about, and you love... You're not even going to feel like you're going to work each day. ...You're just going to feel like you're getting up and you're doing what it is that you're passionate about...

But I'm not, anymore, a particle physicist. I'm a particle accelerator physicist, and so it's my job to understand how to build the machines that we use in this field. And so I briefly want to run down... how these amazing machines actally operate.

The reason we can say today that we know all this stuff, that we think our theoretical models represent reality, is not because we have pretty mathematics but because we have done experiments.