that depends on the density of the universe. there are three possible outcomes which depend on the value of omega (basically the density) being less then one, equal to one, or greater than one.

1.in a high density universe omega is greater than one. gravity would cause spacetime to curve back in on itself. this is called a closed universe, it has a finite size but no boundary. one interesting property of a closed universe is that if you go in one direction long enough you'll end up back where you started

2. in a universe where omega equals 1 is the critical universe. if you looked at space at a large scale it would be flat like euclidean geometry. this universe is infinite in extent.

3. if omega is less than one, this universe would have negative curvature. somewhat like a saddle. this universe is also infinite in extent and is called an open universe.

the problem is dark matter. some galaxies contain ten times more dark matter than luminous material. the large scale distribution of dark matter is not yet know because it only reacts gravitationally so we can only infer its presence by the way it effects material we can see. from what we can tell omega is equal to one meaning its most likely flat.

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420ultimatesmokage Reviewed by 420ultimatesmokage on . wtf happened before the big bang? i was high one day and was thinking about the big bang and stuff. and thought what happened before the big bang? scientist always talk about the big bang and everything that happened after that, but none talk about before the big bang? Rating: 5