[Wolfman77]

Thanks. I thought I read somewhere on here that the red nebulas are at level 5 Obscuration, could be wrong though. I tried it last night and it said I could not create it with a nebula in the system. The reason I was asking though was ragnarok said his nebula destroyers were useless. If you want ringworlds in a system and have to destry the nebula to buils a star then that is one thing they are good for.

Destry nebula
Create star
Build world

If you were able to do it though, I wonder if there are some you can and some you can't. I'll have to test all kinds of nebula I guess.