Dark Matter - Blake Crouch
Pay no mind to anyone that says it needs more science. It establishes the theoretical sci-fi premise early on in the story, then it leaves the science alone. The story is not about science. As any great sci-fi, it is about humanity and human relationships. It teaches us things about ourselves and our existence by providing a lens for reflection. What we do with that lens is up to us. Crouch provided the lens, and I provided the introspection to my own enjoyment. Not to mention it's a light read. It moves at a breezy pace. It's easy to accept the wildly fictional premise with all its little plot holes and enjoy the ride.