The Whippet #178: Somebody better say something about the moon

So what I learned in school is that the Moon was created when another planet crashed into it (a glancing blow) and knocked off a bunch of rock that formed into the Moon.
But no! The planet (named Theia because that’s the mother of the Moon in Greek mythology) crashed head-on into Earth and broke through the crust and into the core. Where it still is.