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Why does dust affect UV light more severe than it affects X-rays?

Ordinary solid materials, even very thin, are almost perfectly opaque to UV. On the other hand, we use hard x-rays to image the interiors of macroscopic solid objects. Hard x-rays pass right through ...
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Why does dust affect UV light more severe than it affects X-rays?

tl;dr, it’s the sizes of the grains of dust and how many there are that create wavelength dependent extinction. Based off of the additional context you provided and reading the article you gave, it ...
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