How does the map handle areas you don't know about?

Aha. Okay, so at the moment, the idea is you discover things as points of data. So say when you go into the Stanton system or Pyro or whatever, you'll see the big planets, probably the moons as well, but you don't necessarily know what's on the surface of that planet. So for example, if there's a mine or a mineral deposit or something like that, you're going to have to get close to that to actually detect it, and then it's going to appear on your map. So essentially, if you don't know about it, you're not going to see it. But as you explore the universe and build up your data bank, your map, it'll start to gradually populate and you'll see more and more in there.