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Why can a brush or wiper be used to clean off the panels and keep the mission going?

April 26, 2017Brush clean going mission Panels Used wiper

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Why can a brush or wiper be used to clean off the panels and keep the mission going?

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The solar arrays are fairly large and, subsequently, the brushes or wipers would also have to be large. A brush or wiper system would require too much mass and probably wouldn’t do a very good job of getting rid of Martian dust. The particles are only about 1-2 micrometers in size.