What Researchers found was unexpected!!!Since 2009, seismic records, which previously changed over time, showed little difference. This, they said, suggested that the inner core rotation had paused. β’ "We show surprising observations that indicate the inner core has nearly ceased its rotation in the recent decade and may be experiencing a turning-back," they wrote in the study. β’ "When you look at the decade between 1980 and 1990 you see clear change but when you see 2010 to 2020 you don't see much change," researchers said. β’ The spin of the inner core is driven by the magnetic field generated in the outer core and balanced by the gravitational effects of the mantle.