That was one hell of a finale, wasn't it? What a terrific season of television!
Though I still feel the series works best for fans of the books, this is the kind of show built for repeat viewings. Having watched each episode several times, I can tell you there are details even I missed the first time around.
So go ahead, re-watch The Expanse Season 1 or pick up Book 1 "Leviathan Wakes." Trust me, you won't regret it.