It gets everywhere - but what is it and where does it come from?

Image: by Pattadis Walarput via Pixabay.

Things mentioned in this podcast:

- Where does all this dust come from? https://www.sciencedaily.com/releases/2009/10/091028114023.htm

- Sand crisis https://www.businessinsider.com/world-running-out-sand-resources-concrete-2018-6?r=US&IR=T

- Space dust https://www.universetoday.com/94392/getting-a-handle-on-how-much-cosmic-dust-hits-earth/

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