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Kered13 t1_iuaw5ft wrote

Reply to comment by ensalys in Is dark matter orbiting galaxies with the same speed as normal matter? by taracus

> So occasionally some dark matter will go through Earth. How much is unknown

It's actually pretty easy to estimate. Since we know the average density of dark matter in the galaxy, and we know that it's essentially uniformly distributed (it doesn't clump up like regular matter), we know that the density is the same around Earth. It's negligible compared to the mass of the earth, but enough that you can assume there is constantly dark matter passing through your body.

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ensalys t1_iucexdk wrote

Sure, you can do that. However, to really estimate how often that happens, we need to know the mass of individual bits/particles of dark matter.

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