re: The squeegee guys were outlawed on Mars too?
How many times has this been batted around.
There was not the volume, power, or mass budget available on these missions, or pathfinder before it, to have any mechanical mechanism for dust removal from the solar arrays.
However - even if such a thing WERE available - it wouldnt work - Mars dust isnt like your average house dust. It cilngs to things. Electrostatics are very likely involved ( and could well lead to a solution also)
However - it's entirely likely that dust deposition over >100 sols wont be the nightmare it would at first appear.
Doug