07-May-2008, 04:38 AM
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Senior Member
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Join Date: Mar 2004
Posts: 9,949
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Quote:
Originally Posted by Jason
Doesn't the Big Bang theory hold that there IS (or was) a center to the universe? The point from which it all expanded?
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No, no center. From:
http://www.sciam.com/article.cfm?id=...2005-03&page=2
Quote:
Similarly, the big bang happened everywhere--in the room in which you are reading this article, in a spot just to the left of Alpha Centauri, everywhere. It was not a bomb going off at a particular spot that we can identify as the center of the explosion. Likewise, in the balloon analogy, there is no special place on the surface of the balloon that is the center of the expansion.
This ubiquity of the big bang holds no matter how big the universe is or even whether it is finite or infinite in size. Cosmologists sometimes state that the universe used to be the size of a grapefruit, but what they mean is that the part of the universe we can now see--our observable universe--used to be the size of a grapefruit.
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