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This page contains an explanation of the the balloon analogy of the expansion of the universe and a helpful animation to show what happens to galaxies and photons of light as the universe expands. This is part of a larger tutorial about cosmology.
%0 Electronic Source %A Wright, Edward %D May 8, 1998 %T Balloon Analogy in Cosmology %V 2016 %N 28 July 2016 %8 May 8, 1998 %9 image/gif %U http://www.astro.ucla.edu/~wright/balloon0.html
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