Quote:
Originally Posted by Anton
If the velocity at which distant galaxies appear to move away from us is gradually increasing the further away they are, that would be a proof for the Big Bang statement that space itself is expanding: the further away to start with, the more space there is in between that can expand.
If instead we had a Big Blast INSIDE an existing space (ordinary explosion), at least I would not expect any such effect.
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As far as I'm aware the velocity of singular galaxies are not increasing, (except for the effect of dark energy) unless you mean that the further they are from us the faster they appear to be travelling. This is just the standard definition of expansion, which I agree with.
Now correct me if I'm wrong, but if an explosion happened in a frictionless environment wouldn't it have the same sort of expansion if there was nothing to slow it down? (apart from gravity)