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Originally Posted by Melusine
Tobin Dax:
What do cosmologists use for the "measuring stick" of the size of the universe at any given time? (In other words, what is the size of the universe 5 billion years ago or 7 billion years from now compared to if we want to describe it?) Hopefully that makes sense.
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Ahh, good pick up
Melusine. I'd totally forgot all about his question.
ops: Guess I must have forgotten it cos I didn't know the answer. :P
with regards
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