Thank you, jellison!

As you know, NASA weren't really seeking solutions, and I just thought what an interesting discussion might develop among such ingenious people - but no!

The solution to which you pointed (are you involved with it?) is most ingenious. If it could be, or need to be implemented, I suspect that the significant area of the electrodes would mean that a smaller area of photoelectrics could be fitted/unit area. With 0.7mm electrodes, spaced at 1.5mm, the best spacng found so far, over 45% of the available area is covered by dust electrodes, so the light collecting panel will need to be half as big again for the same output. Would you agree?

John