We’re hard at work on Season 5 (launching this September!) but before then, we’re giving you a second bite at a topic we spent a long time thinking about this year: what’s in a name? Earlier this season we explored how planetary bodies and their geological features get named. And to our surprise, it’s not all Greek and Roman mythology (we’re looking at you, Titan’s hills Gandalf and Bilbo). We also recorded an explainer on how NASA names their spacecraft, but we just didn’t have time for it in the original episode. So, what do Snoopy, Spider, and Gumdrop have in common? Find out in this bonus episode!