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> But are we saying that expansion isn't something that happens at all scales then? Eg, that only the space between galaxies (or between galaxy clusters) is exp
by arbitrage 5y ago
> But are we saying that expansion isn't something that happens at all scales then? Eg, that only the space between galaxies (or between galaxy clusters) is expanding?
Yes, that's what is being said here. The space inside you and me and our atoms don't expand, but the empty spaces between galaxies do.
It is very weird, and non-intuitive.
- dumpsterdiver 5y ago> Yes, that's what is being said here. The space inside you and me and our atoms don't expand, but the empty spaces between galaxies do. It is very weird, and non-intuitive. Why is it weird that localized entities don’t expand in the same way as galaxies do? Why would my body expand in the same way that the universe would when exposed to a Big Bang?