Recent research indicates that the rotation speed of Earth’s inner core is changing. These variations in the inner core’s movement influence the planet’s overall rotation, which can lead to subtle changes in the length of a day.
Scientists use seismic data to monitor the inner core’s behavior and have observed fluctuations in its speed relative to the Earth’s surface. Understanding these changes helps improve models of Earth’s geodynamics and rotational stability.
**Why this matters**
Changes in the inner core’s rotation impact the length of a day, which is important for precise timekeeping and satellite navigation systems. Studying these shifts also provides insights into Earth’s internal processes, including the generation of its magnetic field and the dynamics of its deep interior.
Source: NewsData