I thought the big bang had no center because there is no edge. Rather expansion ... | Hacker News

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		Aloisius 7 months ago \| parent \| context \| favorite \| on: Adam Riess and the Hubble tension I thought the big bang had no center because there is no edge. Rather expansion was of space itself that happened everywhere.

layer8 7 months ago [–]

No, it’s not space itself. Relative to what would it expand? It’s galaxies moving away from one another, which necessarily increases the space between them.

See also: https://en.wikipedia.org/wiki/Expansion_of_the_universe#Expa...

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