Is it possible that maybe the universe always expands in the same phsical place every time it expands, after collapse?
Or is the only viable theory that the universe floats through empty space?
I know this is a dumb question, but please, any insight is useful.
What is "Black matter"?
I have heard somthing about "black matter" as an idea, but cannot find any information on it..
Would anyone care to endulge me please?
I am interested, for an odd reaon, I will specify later..