I do like korean shows, and this was supposed to be a top tier one, at least with choosing top rated actors, the effort that went into the effects, the music, and the story. Sadly the last bit sank really deep.
I love sci-fi stories, and when this one started, the music reminded me of Interstellar. I thought here we go, this will be an amazing show, but sadly there were a lot of stuff that was made illogically. Like there was no one who could have consulted NASA or Space X as to how the stuff they were implementing to the story works starting from the rocket that launched them, the spaceship, and overall everything. It should have been much believable if somebody worked on these kind of stuff. Also they shaped the characters illogically, I mean they acted like they weren't thinking a lot of the times.
So I'm a little disappointed, but overall I liked this show, it was a fairly good sci-fi survival horror with a cool twist with Lunar Water. The story was stupid at times (people died when they shouldn't have, and there were no factual science here in anything), but at least the actors were great, and the ending was kind of satisfactory. Not the best, but good enough for one time.