with how light works and the constant expansion of what we term the “observable universe” why don’t we constantly see new stars appearing in the night sky as the observable part expands and stars/galaxies light reaches us for the first time?
The night sky has stayed relatively the same (accounting for changing postions over time, stella phenom, supernovas etc.) for all of humans written history.
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Not sure how much of a factor this is, but because of the expansion of space, as galaxies get farther away, their light shifts to infrared, so by the time it hits us, it’s optically invisible. Also, a few galaxies every year get too far away to ever be visible, so maybe that offsets new light arriving?
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