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4 posts tagged with space and cosmology. (View popular tags)
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If I've gotten the right impression, much of our currently visible universe will eventually be expanded away from us, never to be seen again. Do we already know how much and what parts of our present neighborhood we'll be left huddling with?
posted by Anything
on Dec 4, 2011 -
How is the universe 156 billion light years across if it is only 13.7 billion years old?
posted by plexi
on Mar 12, 2008 -