Screaming Penguin - Source Does Matter

C'mon y'all and sing it with me 'bot wash! Whoa whoa whoa whoa 'bot wash yeah!

Not Bender, it's Spirit:

Turns out that a martian whirlwind - dubbed a dust devil - likely zoomed over the robot high up in the Columbia Hills. That fleeting flyby effectively cleaned Spirit's solar arrays, giving the robot a new lease on life.

Engineers report that the rover's power reading quickly shot up to almost as high as when the rover landed on Mars over a year ago.

Space.com via Yahoo!

Man, these little bots just won't quit. Aren't they at like ETF+8 months now or something? Too bad the NASA "actual science" budget is getting cut by another 25% this year.