The Earth's Core

Misha Glenny delves in to the In Our Time archive to select ten episodes for listeners to revisit. His fifth choice, first released in May 2024, is the Empress Dowager Cixi, the woman who, for almost fifty years, was the most powerful figure in the Chinese court. Cixi (1835-1908) ...  Show more

Misha Glenny delves in to the In Our Time archive to select ten episodes for listeners to revisit. His fourth choice, first released in January 2008, explores how the science of plate tectonics revolutionised our understanding of the planet on which we live. America is getting fu ...  Show more

What happens if Earth’s core is slowing? Neil deGrasse Tyson and comedian Chuck Nice explore the spinning of Earth’s core, the physics of tire pressure, and the science of toast.

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Life on Earth depends on the planet’s natural shielding, otherwise solar and cosmic radiation would ravage our small blue world. In this episode of Stuff to Blow Your Mind, sponsored by the National Geographic Channel’s series 'One Strange Rock,' Robert Lamb and Joe McCormick ...

Much like the plot of the 2003 disaster film, The Core, the rotation of Earth’s inner core is changing. But unlike the movie, this change is very subtle. What exactly makes up the Earth’s core? And how significant is its rotation change? Swarthmore College Professor of Astronomy ...  Show more

Like an onion, the Earth has layers. In this episode we’ll see if you can dig through those layers to get to the center of the planet. We’ll also hear about the Danish scientist who discovered more about Earth’s core by studying earthquakes. Plus, we investigate the phrase “dig a ...  Show more