Latest / The Last Observer: Science and Beyond
The Secret World Hidden 6,000 km Beneath Your Feet
We've mapped galaxies billions of light-years away—but Earth's deepest interior remains out of reach.
Discover how scientists use seismic waves to reveal the planet's hidden layers, from the crust and mantle to the molten outer core that generates our protective magnetic field and the mysterious solid inner core nearly 6,000 kilometers below our feet.
This episode includes AI-generated content.
The skinny
The skinny isn't ready yet — notes appear once the transcript is processed.