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Re:Evidence that the key assumption made in discovery of dar... by alex77456 on Tuesday January 07, 2020 @05:59AM (#21978838)
>To know if the universe is expanding, we need to know the following: how far away things are, and whether they're moving away from us

May be a stupid question but wouldn't this apply only if we knew that the universe is uniformly dense? And we only see a tiny portion of it.

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