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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Tbh you already kinda have the answer. So there are a lot of theorys about what may happen to our universe with time but the only solid and observable one is the great expansion. Where dark matter is filling the empty space between solar systems, galaxys and galaxy clusters pushing everyinh away as it spreads rapidly through the universe. We usually measure the distant of light from stars and planets by the colour they give off when scanned and documented. Pretty much every star in the sky now us inferred detected which means starts and planets we used to see reflecting light in the sky are so far away now soon we won’t even be able to detect them. Plus light pollution with a growing population doesn’t help aha. There’s a island in hawaii where you can still see directly into the heart of the milky way. 0 light pollution
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