Print Story Need an astrophysicist here
Space
By BadDoggie (Sun May 18, 2008 at 04:54:26 AM EST) science, universe, astrophysics (all tags)
If the universe is 13.7 billion years old, how can it possibly be 56 billion light-years across? Since the speed of light is constant and cannot have changed, the maximum size of the the universe measured between its two most distant points should be no more than 27.4 billion light-years wide. I'll explain a little further inside.

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