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Wouldn't the sky always be just completely white? Because there would be infinite celestial bodies to light up the sky.



This is a typical argument agasint an infinte universe. However it is flawed.

For one thing it assumes that all the light from everywhere would have reached us by now; an unlikely proposition when dealing with vast distances.

Another flaw is that it doesnt take into account dark matter; dark matter or even non-light-emitting matter would block the light somewhat, making the "white sky" phenomenon impossible. Even dust can eventually absorb or shadow the light.

Another problem with this argument is that there may be super-large gravity fields, like massive black holes, causing the light to bend away from us.

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