258 - Under Alien Skies - Phil Plait
You Are Not So Smart
00:00
Saturn's Rings
The rings are not solid. They're made of countless chunks of ice. And because they are chunks and because they obey gravity, you start getting all these weird effects. There's a moon called Mimus, which looks just like the Death Star. You would never have thought something like this would happen beyond your reckoning.
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