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What is the initial force of universe expansion?

by Ranku
Tags: universe
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Jun14-09, 02:13 AM
P: 115
When the universe started expanding at the big bang, was it mainly driven by the force of the big bang ? Does dark energy start to play the major role in driving the expansion only when it is accelerating?

(I would prefer to have this question answered by a PF Science Advisor or someone who actually knows about it.)
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Jun14-09, 08:11 AM
P: 5,632
try this thread, currently active:

but some of the earlier posts are plainly wrong....try starting with post #6 from Wallace, a Science Advisor...

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