If we know approximately how long it’s been since the Big Bang, and we know approximately how fast the universe expands/has been expanding, why can’t we get a good estimate on how big the non-observable universe is? Or more specifically, why can’t we figure out the radius on how far matter has spread out since the Big Bang?
In: Planetary Science
The Big Bang didn’t happen in one small place that the universe is expanding away from. It happened everywhere and the universe is expanding by adding space between all the space, not radially out from some center point.
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