Re: A long, long time ago
Shouldn't that be "shot", past tense?
Possibly both. Language doesn't work well with these time scales. What is being observed today took place long in the past, but at the core of the quasar is a black hole that is still in existence today. If there is any gas around for it to play with, then it probably is still blowing plasma like there's no tomorrow... but maybe it took up knitting instead. It is getting quite up there in age after all.
Biting the hand that feeds IT
