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'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.'

Originally posted by PPLwakeUP
Even if Saturn is not hollow, a cylindrical piece of crust could break away and being pretty hot, reshape into a sphere and thus form a new planet.