"I'm not sure. I didn't exactly walk into the room - I thought that I might have fallen through space." Barbara hadn't been on board for long at the time, and had been feeling like she might have broken anything if she'd touched it wrong. "I'm not sure that you could ice skate on the rings of Saturn. They're made of rocks, aren't they? Rocks and gas. You could play a rather interesting game of hopscotch!"