"Well, planets generally circle around a star of some kind. In Earth's case, that's the sun, and the Earth also rotates on its own axis as it's circling the sun. In fact, sunrise and sunset are actually determined by..."

Zouichi trailed off. Maybe Rarity would just have no idea what he was talking about. Maybe there was no pony Galileo. As far as he knew, though, one individual couldn't be in charge of the continued sunrise-sunset cycle of an entire planet, though. WAS THIS PONY PRINCESS A CHARLATAN RELIGIOUS FIGURE

"...maybe I should ask her. So, what else does she do?"