The latest episode was "If the Stars Should Appear" and was probably the best one so far--basically featuring the space version of Flat Earth-ers.
Every episode is an improvement over the last which is good to have in a TV show. The show is also actually episodic so you don't have to binge-watch it to get to the good stuff; you can just watch an episode a week, get closure, and sci-fi responsibly the way God intended.
Isaac is my favorite, but he hasn't had an episode about him yet.