FF's version of space is the void or at least something very similar to it, from my understanding, as the reference to 'star' is referring to the planet and not the universe. Omega and Gilgamesh, and I believe Ultros and Typhon, are void travelers through each FF entry they appear. Lightning, too, since she appeared in an event early into 2.0 and IIRC has been confirmed canon to XIV. Although quite how she, Ultros, Gilgamesh, and Typhon manage to traverse the void without sacrificing their corporeal bodies is quite another mystery. I suspect Midgardsormr might know of it. You could be right and space travel is how Midgardsormr gets around, but given the FF multiverse connected by the void is canon, I'm inclined to believe we're dealing more with the rift between worlds rather than straight up space travel. Perhaps the two are one and the same in the FF multiverse. World of FF certainly hasn't made things any simpler either. Or Dissidia. I would like to know where in the divine order Hydaelyn stands, as it is quite literally the Great Crystal, or at least -a- great crystal. Personally, I think XIV is at the epicenter of the multiverse, or Hydaelyn is.