The weird thing is this first measurement they did showed double the amount of light they thought would be there. Also the darkest parts still have photons since you have other galaxies that you cant see with the naked eye in those "dark" parts.

[–] theforkofdamocles 11 points 1 year ago (2 children)

I’m guessing that because there are always some amount of stars visible, the number would have to be above zero, but maybe as you get a certain distance away from closer stars, the darkness kind of “evens out”?

[–] Shdwdrgn@mander.xyz 4 points 1 year ago (2 children)

Well now you've got me wondering... how long after the heat-death of the universe before all of the traveling photons have been extinguished? How old will the universe be before it truly goes dark?

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[–] Kolanaki@yiffit.net 1 points 1 year ago (1 children)

I was also wondering about near black holes. If even light can't escape, is there basically pure total darkness beyond the event horizon?

[–] keeb420@kbin.social 1 points 1 year ago

maybe. no one knows. just because light cannot escape does not mean it does not exist inside. and even if it exists inside everything could be so distorted it might not be visible. maybe light is only visible from further out to inside, ie if you were in the middle of falling into a black hole youd see matter that has just fallen in but nothing from before you fell in. or maybe the opposite.