If the observable universe is 13.8 billion light years in radius due to the finite speed of light in relation to the total time of the universe's existence, how fast is the observable universe expanding in total?

1 Answer
A. S. Adikesavan
May 5, 2016

Assuming that our universe expanded radially, from a point of nothingness, 13.8 billion years ago, the overall rate of expansion is the speed o light = 1 light year/year.

Explanation:

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