How does Space Kitty breathe?

And what would Space Kitty eat, if no daring starship comes along and hides inside her? I mean, really. How ridiculous!

On Vacuums

I do say, the fact of the matter is quite clear, sir: The Vacuum is punishment for our sins, sent down upon us from the hands of our angry God.

I must respectfully disagree. As Asimov said, science at a certain level is indistinguishable from magic. The vacuum is some sort of loud sound device used by the humans to keep us in fear, and under their control.