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How long is a day on Saturn? Scientists finally have an answer
A puzzle about our Solar System — how long is a day on Saturn? — has kept astronomers up at night for years. This figure was hard to calculate: The gas giant has no solid surface so there are no landmarks to track as the planet rotates. And a magnetic field makes the rate of rotation hard to see. What to do?
https://www.digitaltrends.com/cool-t...-length-rings/
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