I just got Destiny, and I've already started delving into the lore, because it's just so damn interesting. I was reading the Ghost fragment for Dead Orbit, where it's the Arach ship captain telling the Ghost the story of his mission. This was really interesting to me, especially after reading up on the heliopause: [quote]lo? Hello? Are you...oh, please, let it be alive. Wake up little Ghost, wake up. Just please give me some sign that you're listening. All right. I don't need...I know you're listening. Why would you be out here if you weren't here to...It's a miracle I found you out here. On this thing. I didn't know the Traveler sent its Ghosts out this far from home.[/quote] What if the Arach was at the Heliopause, and had found one of the Nine? Although why the Ghost Fragment would end up elsewhere escapes me, it's just a bit of information that could possibly relate to the Nine. Maybe the station they were looking at was a hardened stealth platform?