View Full Version : Rovers are Getting a Little Dusty

2005-Sep-11, 12:56 AM
SUMMARY: Now on the surface of Mars for longer than a year, the twin Mars Exploration Rovers, Spirit and Opportunity, are getting pretty dusty. Both rovers have a fine coating of dust 1-10 micrometers thick which is starting to obscure their solar panels. Spirit has gotten more dusty, with about 70% more dust, so it's getting less power. This could be because it's windier around Opportunity's landing site, which is constantly blowing away the dust. It's also cold enough at night that frost forms on the rovers. This could be clumping the dust together, and causing unexplained boosts in electricity coming from their panels.

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