Summary:

- The article discusses a new study that shows the Earth's inner core may have stopped rotating and could even be reversing its direction.
- This finding challenges the long-held belief that the inner core rotates faster than the rest of the planet, and has implications for our understanding of the Earth's magnetic field and its evolution.
- The study used seismic data to track changes in the inner core's rotation, and the researchers suggest this could lead to a better understanding of the dynamics of the Earth's interior and its impact on the planet's overall behavior.