I mean, this is tricky to even ask: is there still expansion INSIDE galaxies, BUT it's countered by gravity?
Or is there no expansion within galaxies at all?
i.e. is dark energy or whatever that causes expansion only present in the absence of matter, or is it present everywhere regardless of matter, but because matter also has its own gravity the expansion is not visible/relevant?
Or is there no expansion within galaxies at all?
i.e. is dark energy or whatever that causes expansion only present in the absence of matter, or is it present everywhere regardless of matter, but because matter also has its own gravity the expansion is not visible/relevant?