See more of my reviews on The YA Kitten!Another sci-fi book. For some reason, I keep picking them up despite my apathy for the genre. Perhaps I was hoping Glow would be the one to really impress me and make me like sci-fi. (Or maybe I was reading it solely because an ARC of its sequel was coming. Yeah, that sounds right.) The plot grabbed me and didn't let go, but in all honesty, I can't respect a sci-fi novel that grossly violates Newton's first law of motion.To be fair, Glow started off with a bang: the invasion by the New Horizon people. Ryan can write a mean action scene and keep readers glued to the pages with top-notch pacing. I can respect the slowly evolving psychological mindset and development of the characters throughout the novel. I dreaded reading the novel when Waverly's response to her boyfriend proposing to her was "Why not marry Felicity Wiggam? She's prettier than I am," but my worries were for little. Who each character was at the beginning of the novel barely resembles who they were at the end, and what this promises for future books in the series is tempting.So what about Newton's first law of motion being violated? Well, said law goes something like this: an object in motion stays in motion until an external force acts upon it. On Earth, that external force is most often gravity. In space, there is no such external force, so an object will continue moving at the exact same rate forever. It's why tools astronauts lose are goners if they float away.The long explanation I came up with for this was too long and convoluted, so I reduced it to a few bullet points.*The New Horizon slowed down to let the Empyrean catch up.*The only way the New Horizon could slow down was to use its reverse thrusters to cancel out their forward momentum.*It explicitly says in the novel that they did not use their reverse thrusters to slow down.*Because they are in space, there is no external force to act upon the ship. A spaceship in space whose engine is cut can't slow down like a car on Earth can and would.*Because of this, the New Horizon should have kept moving at the speed it was going when it stopped using its thrusters. It didn't.*Therefore, Newton's first law of motion was violated. Bad sci-fi novel! Bad!(I really hope that made sense. My explanations of science aren't fantastic.)And the writing. Oh, the writing! Third-person narration didn't feel like the best choice for this novel. The copious telling-not-showing way it told the story and explained everything kept me from getting fully invested in the story. I normally don't have this problem with third-person, but the way it was used in Glow made the characters feel so distanced from me. Ryan can write great characters, pace her story well, and come up with a great plot, but her technical writing skills need improvement.Glow packed a real punch with its ending. Unfortunate implications of both Christian priest/leader characters being evil cult leaders/dictators are there, but the stage set in Glow and promised for the sequel Spark will have readers coming back for more. I was worried it couldn't pull through for me because of the major science flub, but I'm happy to say it's a solid novel otherwise. Lord of the Flies in space, almost.