Planet X is one of those topics that keeps coming up in pseudoscientific circles, in part because people who have been claiming it will come by and cause destruction continue to do so, making up new excuses as to why their last prediction failed. In this episode, I delve into the latest claims by Nancy Leider, one of the originators of the Planet X causes doom mythology, and I discuss some of the supposed discoveries and announcements in 2016 in the scientific community about a real extra, as-yet-unseen planet in our solar system.