Scientists are going back to the drawing board (again) about the big red spot on Jupiter. The largest and longest storm in the solar system has led fingers to scratch heads for centuries and the debate rages even now. It certainly stimulates the imagination - it seems that the spot towers above the surrounding atmosphere, pretty much like a supercell here on our own little blue planet. If something has been around much longer than we first saw it - in the seventeenth century, then at least we have time on our hands to come up with the right answer. Wired has an interesting article on the spot - go take a look.