weren't the yuuzhan vong from another galaxy? I don't know as I never read those books and don't need that story line. I tend to care less when SW shifts to "oh no, that bad alien race is attacking the galaxy".
Yes, the Yuuzhan Vong were from another galaxy. Before them in the original Marvel Comics there was a threat from outside the galaxy called the Nagai. In Ahsoka, the temple on Seatoss are from an ancient people from outside the galaxy which I think the show is alluding is where the Nightsisters of Dathomir are originally from. It could explain how they use the force so differently.
I'm still not 100% sure that's Anakin's Force Ghost. It's not all blue and glowy...I'm really not sure what's going on in the world between worlds as of yet. I have a feeling Ahsoka is going to use it as a way to transport to Peridia. I don't think Hera would be able to get there in the Ghost...even if she's able to get the coordinates.
Unless they are able to use the Purgill somehow like Ezra did.
Damn...is it Tuesday yet?