One of the most bizarre things yet found in the Solar System is the hexagon of clouds that extends deep into Saturn's atmosphere directly over the planet's north pole. For the past several years, the area has been in darkness during Saturn's northern winter, but it is now emerging into light, and Cassini is taking the best pictures yet of the formation.
A jetstream of wind surrounds the formation, seeming to hold it together. Coming off each of the six corners is a wave of wind. Exactly how those features explain the formation is completely unclear at the moment, but the hexagon has been there for at least thirty years, so scientists will probably have plenty of time to puzzle it out.
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