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A comment on Voyager 1 is a light-day away by November 2026. Parent comment
Granted, there is also growth of dust grains. But surfaces from which atoms can be ejected by UV photons will erode.
Some notes: https://www.astro.princeton.edu/~draine/dust/Draine_IPMU_Lec...
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Granted, there is also growth of dust grains. But surfaces from which atoms can be ejected by UV photons will erode.
Some notes: https://www.astro.princeton.edu/~draine/dust/Draine_IPMU_Lec...