[Ed Kolis]

In case you don't want to create a nebula for your enemies to hide in?

On the other hand, by the time you reach that level of technology, you're bound to have max level sensors anyway, and there aren't any nebulas that can't be penetrated, so I guess the nebulae creator is just a technological improvement - it does require one more level of Stellar Manipulation, after all...

The nebula creator doesn't destroy the asteroids created out of the planets in the bLast, does it? It just cloaks them, right? At least that's what I remember happening... dunno if you destroy the nebula if that will get rid of the asteroids though...