Who knows, maybe future rovers will have something exactly like that. Many of the new high end digital cameras have a dust removal system built into them that literally vibrates the dust off. It seems to work fairly well. Why not on a rover? NASA, are you listening? Robert Taylor ------------------------------ Message: 2 Date: Thu, 13 Nov 2008 22:47:47 -0700 From: "Darin Christensen" <darinc@comcast.net> Subject: Re: [Utah-astronomy] Controllers Cheer as Data Arrive from NASA'sSpirit Rover To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com> Message-ID: <748055477BD6430C961CDCA62C5C1967@darinpc> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original I wondered if the atmosphere was thick enough to use a small wind powered generator to augment solar power, and if a blower/fan could have been added to clean off the solar panels......