A new study out this week said that the Earth's inner core is less solid than previously thought. Scientists still have ...

Researchers found evidence that the Earth's inner core is changing shape, suggesting unseen processes affecting its movement ...

It now lags behind the rest of Earth's rotation. From that research, the scientists could figure out when the same spot on the core passed under the same spot on Earth between 1991 and 2023.

Research reveals structural changes in the inner core's surface, indicated by differences in seismic wave pairs.

Earth’s inner core was long thought to be a solid sphere of mostly iron anchored by gravity within the molten liquid outer core. Scientists have long debated whether this massive ball rotates at a ...

Scientists have found new evidence that the Earth’s inner core, a dense metal ball deep within the planet, may not be perfectly solid and is changing shape. Researchers say its outer layer has changed ...

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Could it reverse directions ... the average person to detect – is the influence of the rotation of the inner core on the length of Earth's day, but it's only by an order of milliseconds per ...

The study, "Annual-scale variability in both the rotation rate and near surface of Earth’s inner core," was published in the journal Nature Geoscience.

This process drives churning in the outer core, which sustains Earth’s magnetic field. Changes in the inner core’s rotation can also affect the length of our day. “Ideally, we’d like to ...