Aery rolled her eyes. "No, you idiot. It's zero gravity, not zero pressure. The vessel is airtight so it will hold air in, and the air molecules are bouncing around randomly since they have no "down" onto which to orient themselves. How could we breathe if there was no air? And we could have waited for three more months and bought the next size one up. As it is, based on our relativistic speeds versus the earth-clock, at our next stop my savings account will have increased to approximately 30 times the amount that was there before, and I had a fairly substantial sum to start with, having saved up for xenobiologer school. Using just my money we could probably get a nicer ship than this."