Currently the universe consists of one gas giant, the asteroid belt orbiting it, and its 10 moons. Beyond that there isn't really anything to see, just empty space. The dev's plan is to add in more planets, moons, etc as they're needed. So once most the moons start being populated and the playerbase has outgrown them, another planet might be added elsewhere. Starbase's scope is less a whole galaxy and more just a big solar system.