Just saw a video of the hubble telescope zooming into a small patch of seemingly empty night sky revealing millions of stars and galaxies invisible to the naked eye.
Makes me wonder, if space is mostly empty and there’s possibly infinite number of stars and galaxies in any given part of the night sky, shouldn’t the night be as bright as the day?
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Light becomes exponentially more dim the further away you are, following the ‘inverse square law’
ELI5: your voice gets quieter the further away you stand from me. Stars get dimmer the further away you stand from them! If you had really really big ears you could hear me louder. Telescopes have really really big eyes and they can see stars from further away!
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