Big fan of Metroid, Stargate, Star Wars, Halo, Legend of Zelda games, Advance Wars, Avatar: Last Airbender, DC, Marvel, and over 95% of all Anime. (Okay maybe not 95%, 50%) Any images I post here on my profile are mine unless I say I found it on google or somewhere else (If it's not a video game screenshot, it's not mine) I've changed my username from Admiral Ace to Admiral Ash to partial resemble my username on other sites and my Minecraft username, AshUzumaki
Something I tried out by using a galaxy model from the StarGate Pegasus Chronicles mod. I took two different ones that had a large and small galaxy on it and placed both model in the galaxy map and then added planets in (which took a long time) and I got three entirely separate galaxies. The closest is the Milky Way, largest in the middle is the Star Wars Galaxy and last at the other is just random one with no name.
I was really happy this worked, but didn't except it to work or for it to not glitch or crash.
So this is something someone else could try, they would just need to make a Galaxy model with three galaxies.