Using hubbles law,when was the big bang?

Well, considering that the only constant thing about the Hubble "constant" is that it is always changing, it's actually impossible to get a accurate measurement. :P Kinda retarded isn't it?! Anyway, there actually isn't any real proof to support the big bang theory. The whole idea depends on a nebulous cloud of dust exploding and re-condensing in the form of planets, moons and stars. But where did the dust come from to start with? And why are there materials on the moon that aren't found on earth if they both came from the same cloud of dust? Plus, there's no reason for the dust to explode anyway! I mean really, what happened, one piece of dust just decided to blow up and make some galaxies! That's some pretty darn intelligent dust right there! :) I think it's kinda funny, the scientists can't figure out how the universe started, so they just make up some story with enough confusing words to convince everyone it's true! It's like DUH Retards! Don't you realize that this has already been recorded in the Bible!? Sure it's old, but that is actually good when you think about it, the older it is, the better description you're going to get because it was written at the closest time possible to Creation!