There lay a grotto submerged in silence so profound he could sense the settling of dust.

The velvet pew cushions remain untouched and there is such an emptiness that the settling of dust can almost be heard.

Following the dust storms, the rovers had significantly reduced power due to settling of dust on the arrays.

Since knowing how the settling of dust out of Mars's atmosphere would affect solar cell performance would be critical to subsequent solar-powered missions on Mars, the MAE was included aboard the Sojourner rover to measure the degradation in performance of a solar cell as dust settled.