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A mystery glows on Saturn

Posted: Wednesday, November 12, 2008 7:20 PM by Alan Boyle

in Cosmiclog-MSNBC


Scientists say the northern lights on Saturn are unlike anything they've ever seen, on Earth or elsewhere in the solar system. Infrared imagery from the Cassini orbiter, released today to accompany research published in the journal Nature, only adds to the mystery at the top of the ringed planet.

Saturn's north pole is already home to a bizarre six-sided cyclone that planetary scientists haven't yet figured out. That observation marked the first time a hexagon had been seen in atmospheric patterns. The northern auroral displays, monitored by Cassini's visual and infrared mapping spectrometer, also go against the conventional wisdom.

On Earth and Jupiter, for instance, astronomers are used to seeing auroral arcs or rings of light - which glow when energetic particles stream along a planet's magneti

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Added: Nov-13-2008 
By: wrano
In:
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Tags: Saturn, Space, Universe, Solar System, Astronomy, Aurea Borealis, Cassini, Hubble, Physics
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