This is one of my favorite episodes because of how endearing and patient Paul Geithner. I just loved his responses to Johnathan the entire episode, he didn't sound condescending at all or dismiss Johnathan's questions or comments ever. I studied Astrophysics in college (but now a data science so I'm not in the Astro community anymore) and I just found Paul to be a great educator on some basic Astronomy information. Just fabulous.