This is an awesome article, even if you're one of those people that aren't really interested in science fiction (like me), it basically talks about how, if we did start having battles in space, what they would really be like. What the weapons, spacecraft would be like, even how we Humans would cope with it all. It's a long read, but a good one.
http://gizmodo.com/5426453/the-physics-of-space-battles
http://gizmodo.com/5426453/the-physics-of-space-battles