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[–] • 0 pt

iirc the rover has a pneumatic air pump that it uses to get rid of the martian dust. It comes back because mars is filled with dust.

[–] [deleted] • 1 pt

Thanks saw this...

https://www.space.com/25577-mars-rover-opportunity-solar-panels-clean.html

But it still doesnt explain how it cleans itself.

[–] • 1 pt

Oh that's neat. Their theory is wind. Interesting.