Playing with volumetrics in Blender 2.8 EEVEE is just sooooooo different than it was in 2.79.
I tried for ages now to create somewhat good looking nebulas, and specifically this one was fun to make, yet there is nothing special about it.
You can create you own space nebula fast and easy. Just follow the tutorial created by Curtis Holt
• Creating Nebulas in EEVEE (Blender 2.8)
He also offers cool resources for download.