Love this show and the books, especially the audiobooks narrated perfectly by Jefferson Mays. If you haven't checked out the books, you're missing out on some of the best sci-fi in ages. I love that they are set in a very unique time period in the future that we don't see a lot of: earth has colonized the solar system but interstellar travel is not possible. No warp drive or hyperspace. That means traveling from one planet to another can take months.
The show does such a great job of showing and explaining accurate space physics. No artificial gravity. You want gravity? Best we can do is engine-generated thrust.
All the characters have great arcs too. I was sad that the final three books were never adapted, but the way the books were written means that they can easily finish the series with a movie trilogy if they want.
James SA Corey started a new sci-fi series I am digging so far, The Captives War. VERY different from The Expanse but still fascinating