Big Bang...How Did it Happen?

If your talking about Gen Relativity the way it explains the excess precession of Mercurys orbit (0.01 degrees per century) has always been considered something of a strong point...

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The first: Expanding Space. How do we know that space is expanding?

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You were already told....Hubble red shift of galaxies....Now if you don't think that the red shift shows the universe is expanding what is YOUR explanation? I mean surely you have an alternate way of explaining the data?And may I suggest that "it doesn't make sense to me" is a damm stupid arguement unless you can back it up....

Yep interestingly the two fellas who found it weren't even looking for it, they found it by accident while trying to use the Bell antenna for something else....Still I'm kind of interested in how he explains observed red shifts bar an inflating universe...

Just to add to Crash's point here I'd like to ask Navy why he thinks that a catholic priest (Lemaitre) would propose such a notion if it was so clearly an arguement against the exsistence of God and the biblical narrative?Hmmmm catholic priest proposing atheistic theory, something isn't right there....Maybe Navy would also be interested to know that the big bang at first had something of an uphill struggle, because of the theological implications of everything coming from nothing, untill the evidence started rolling in....

Then again curtains and tents are usually pullled taut but not made to expand...

Basically during about the first 10^-43s of the universes exsistence all four forces were unified (we aren't quite sure how yet we still need a theory of quantum gravity but that one will be cracked eventually)...During that period quarks and leptons were indistinguishable and quantum numbers were not conserved...Quarks and antiquarks changed from one to the other freely and at t = 10^-43s there was a slight excess of quarks over antiquarks (about 1 in 10⁹)...And a good job too because when the rest of the quarks and antiquarks anihilated that slight excess became our universe...The Casimir effect that we observe happens with the four fundamental forces seperate and thus it creates equal ammounts of matter and antimatter and quantum numbers are conserved...