Mysterious glowing aurora over Saturn confounds scientists

A stunning light display over Saturn has stumped scientists who say it behaves unlike any other planetary aurora known in our solar system.
'We've never seen an aurora like this elsewhere,' said Tom Stallard, a scientist working with Cassini data at the University of Leicester.
'This aurora covers an enormous area across the pole. Our current ideas on what forms Saturn's aurora predict that this region should be empty, so finding such a bright aurora here is a fantastic surprise.'
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