Saturn and Rings

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"More days to come / New places to go I've got to leave / It's time for a show Here I am / Rock you like a hurricane!" -The Scorpions
"For most of the history of our species we were helpless to understand how nature works. We took every storm, drought, illness and comet personally. We created myths and spirits in an attempt to explain the patterns of nature." -Ann Druyan
"When I was having that alphabet soup, I never thought that it would pay off." -Vanna White

Great picture, and the posts on world affairs are good too. This week's issue of NATURE reports that old theories of Saturn's heat are lacking. Saturn radiates 2.8 times as much heat as it receives from the Sun. "This unexplained energy crisis represents a major gap in our understanding of these planet's atmospheres," the authors write, "we need to re-examine our basic assumptions about planetary atmospheres and what causes the observed heating."