Not really surprising that Catholic schools would teach the Big Bang theory. It was first suggested by Monseigneur Georges Henri Joseph Édouard Lemaître, a Roma

Not really surprising that Catholic schools would teach the Big Bang theory. It was first suggested by Monseigneur Georges Henri Joseph Édouard Lemaître, a Roman Catholic priest and astronomer at a Catholic University in Belguim, who called it the "Hypothesis of the Primeval Atom or the Cosmic Egg" apparently.