As followed in this blog, a powerful dust storm on Mars has threatened the future usefulness of NASA's rovers, Spirit and Opportunity. Recently, however, the storm has weakened slightly, allowing more sunlight to reach the surface, thus allowing the rovers to recharge their batteries and warm their electrical innards.
All is not well quite yet, but the rovers may survive this storm yet. Either way, they were designed to last only 90 days, so NASA has been playing with the house's money for a very long time.
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