Today, I will compare three space-related series that are about as different as you can get:                                                  Rotten Tomatoes                          Channel       Reviewers  Audiences  My Grade                                            The Expanse     Prime*                94            95             B Moonbase 8        Showtime          62            61            C  The Astronauts   Nickelodeon       ?              ?             A- The Expanse is the senior citizen of this group, with five seasons.  *However, it started at SyFy, and was picked up by Amazon Prime in season 4.  While the ratings are fabulous, the first year only received a 77% rating by Rotten Tomatoes Reviewers.  However, audiences liked it with 94%.  Then, season 2 got 95/97, followed  by, seasons 3, 4 and 5 all with 100% reviewers scores, with 97%, 94% and 94% from audiences.  This is about as good as it gets.  However, I'm still in season one, and I stopped watching some m