Episode Details

Earth’s inner core is spinning faster than the planet’s surface — a discovery made by analyzing seismic waves from earthquakes over the last 60 years. This “pendulum-like” motion, which flipped direction around 2009, could subtly affect day length by milliseconds and is crucial for understanding Earth’s magnetic field, which shields us from solar radiation. While it won’t change your daily life, it’s a thrilling reminder that our planet still holds deep mysteries waiting to be uncovered.

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