yes i know the sun was in the background on the nebula missions, but thats just because it was a default thing for the level, and as i said, how is that possible if the nebula is a supernova remnant?
as for karajorma's theory, it sounds interesting, the ancients were subspace genius's compared to vasudans and terrans, evidence is the knossos gate's. but like some1 said, they may have developed maths

differently to us, and the ancients were more of a spiritual race, much like the vasudans but without the scientific qualities or needs. However when they stumbled upon subspace, perhaps there math qualities improved aswell as there military and it began to phase out there more spiritual qualties? again much like the vasudans.