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Saturday
Mar282015


 "Researchers have answered a question that has been nagging them for years: Exactly how long is a day on the planet Saturn? The result (10 hours and 32 minutes or so) was published this week in the journal Nature, and could teach scientists more about the giant, ringed planet."

"A day is simply how long it takes a planet to spin all the way around. On Earth, one rotation takes 23 hours, 56 minutes and 4 seconds — though earthlings round up to 24 hours even."

"Measuring a day on rocky planets like Earth is fairly simple, according to Ravit Helled, a planetary scientist at Tel Aviv University in Israel: 'You can, you know, identify a mountain or a stone or whatever it is, and just check how long it takes it to come back.'"

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