Its so unrealistic. People dying in space because no one knows anything about medicine? Pressure on the wound and get them to gravity! Its basic stuff. Astronauts are top educated individuals. Clooney grabs his gun in the sinking shelter and not his life support bag at the same time? They were literally right beside each other. And, he doesn't die or suffer any type of hypothermia after taking a dip in the arctic ocean and keeping his wet cloths on and walking who knows how long in an arctic snowstorm? This movie made me get angry with its many many inaccuracies. I only gave it 2 stars instead of one because it has a few nice scenes. Also, why wouldn't their radar pick up those ice chunks from a long ways away, and why wouldn't they have preventative measures for such things? Cool 3d printed ship parts , and impact absorbent walls though. Very bad ending too.