I like the idea of a race being gone and leaving things behind for new ones. I just looked up a binary star and that sounds very interesting!

 Lesley said building up from the bottom may be a good idea, and i agree, it will make working on things later a lot easier. So for now lets try throwing out ideas about the planet and what it's like. We can talk about continents and such, also for future reference mixing genres is way fine by me, I was going to be throwing out idea like that sooner or later.