Posted by tourdemars to Mars Exploration Rovers at August 2, 2007 12:00 PM

Rover engineers are growing increasingly concerned about the temperature of vital electronics on NASA's Mars Exploration Rover Opportunity while the rover stays nearly inactive due to a series of dust storms that has lasted for more than a month. Dust in the atmosphere and dust settling onto Opportunity's solar panels challenges the ability of the solar panels to convert sunlight into enough electricity to supply the rover's needs. The most recent communication from Opportunity, received Monday, July 30, indicates that sunlight over the rover's Meridiani Planum location remains only slightly less obscured than during the dustiest days Opportunity survived in mid-July. With dust now accumulating on the solar panels, the rover is producing barely as much energy as it is using in a very-low-power regimen it has been following since July 18, 2007.