I know that space combat is a hot topic, some love it, some hate it, some want something more. I personally like it, but I found something that can add a bit more of a challenge to the diversion of day to day questing. While doing your space mission, hide the UI with Alt-Z. I find this adds some flavour as you cannot see how far you are along in the objectives (nor what they are). You can't see your armor/shielding levels except from a visual perspective. You can't judge your missile count, nor how long you have left in your mission. It also let's you take some nice screenshots. Anyway, enjoy.