Quote:
Originally Posted by Gorilla
A region of space with absolutely no matter. The observable universe isn't even perfect, but it is an almost perfect vacuum. Also, its one that picks up little pieces of paper on the first pass.
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And, then, we must add, nobody yet knows what Dark Matter is, other than the universe is full of it. If Dark Matter is to be considered matter, then the universe is not even close to being any sort of vacuum at all.
As with God, it is impossible to directly prove the existence [i.e., to physically measure] Dark Matter. As with God, we know Dark Matter exists because we can measure, not Dark Matter, but rather its attributes [neters?].
And, hence, from indirectly measuring its effects on the universe, we know that Dark Matter is, as with God, omnipresent.
Interestingly enough, this "stuff" we are calling Dark Matter literally attracts the entire universe to it, just as Dravidian rooted religions say Brahman will, one day, draw the entire universe back into Itself.
The Nature of Dark Matter - Introduction