If the universe is assumed to contain an infinite number of uniformly distributed luminous stars, then every line of sight should terminate eventually on the surface of a star and every point in the sky should be as bright as the surface of a star.

Looking at trees within a big flat wood in the direction of the horizon shows the effect: The mass of dark trees will hide the horizon. If you imagine the trees as bright stars, you can imagine the same effect leading to a sky that is uniformly bright. This is known as "Olbers' Paradox" or "Dark Night Sky Paradox". Music: 'Revised Youth' by Broken Kites and 'Touch the Sky' by Iambic 2 Read more at: Wikipedia

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