For more than 40 years, planetary scientists believed they knew how long a day on Saturn lasted. They were listening to the ...
Our planet may have had a recent change of heart. Earth’s inner core may have temporarily stopped rotating relative to the mantle and surface, researchers report in the January 23 Nature Geoscience.
For decades, Saturn has been playing a strange trick on scientists. Depending on how they measure it, the giant planet seemed to rotate at different speeds, which should never be the case for a solid ...