Surely there isn't enough mass to pull all the matter back once the universe has expanded to its supposed maximum capicity.
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04-11-2007, 02:09 PM #12
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Galaxies moving isn't proof that the universe is expanding, it could well be that it's always been infinite and the galaxies are just moving around inside of it. There's also a possibility I suppose of the universe itself being spherical, which could explain the differences in galactic movement, but doesn't really hold as "space" has no matter and so couldn't really be a shape.
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yeh my teacher was saying how we have only found around 10 percent of mass needed to pull it back in. but he was saying if we discover dark matter (or anti matter dunno what he said) then it could add up
Originally Posted by Jinc
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