"Copernicus published his manuscript in 1543 just in time for the council of Trent. So you're a church father and what this new system of Copernicus is saying is this: The Earth moves, although the Bible says it doesn't. It's no longer at the center of God's universe, although the Bible says it is. It's a planet, so heaven and Earth are no longer separate. And Aristotle was wrong, although church authority depends on his being right. You're a church father and you pick up this subversive, heretical, revolutionary piece of lunacy and you start foaming at the mouth, right? Wrong. When the council finally got around to reading Copernicus they were delighted. His new system had made calendar reform more precise. And the business of it turning every basic belief about the universe on its head? A mere fairytale since from the church's viewpoint he was talking nonsense. Astronomy drew lines and circles in the sky but they weren't really there, they're a mathematical convenience for measuring or teaching astronomy. While the Copernicus system might well have been brilliant mathematics, no one thought for a minute that he was actually suggesting the earth was whizzing around the sun. That kind of talk would blow holes in everything."