Earth’s inner core rotating slower than surface, study suggests

Some uncertainties with this topic. Researchers here propose a 70-year cycle, but other theories say 20-30 years, or even no cycle at all. – – – Earth’s inner core, a hot iron ball the size of Pluto, has stopped spinning faster than the planet’s surface and might now be rotating slower than it, research suggested […]

Earth’s inner core rotating slower than surface, study suggests