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How many light years is the observable universe?

Ross Pratt

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Ashley Howard on April 26, 2018

The observation of the volume of the universe is spherical with a radius of about 14 billion light years. Comment : The answer depends a bit on definitions. Wikipedia article called the "Observable universe" it seems pretty complete. I'm inclined to go with the answer : "about 46 billion light years" as the radius of the observable universe, but I'm not an expert.


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