Earth's Not-So-Juicy Center

The video explains the structure of the Earth, focusing on its layers: crust, mantle, outer core, and inner core. It highlights the differences between the solid inner core and the liquid outer core, both composed of nickel and iron. The formation of the core is attributed to the Iron Catastrophe, where dense materials sank to the center. Despite high temperatures, the inner core remains solid due to immense pressure. The Earth's magnetic field, generated by the outer core's convection, is crucial for protecting life from radiation. The video contrasts Earth's active magnetic field with Mars' inactive one, emphasizing the importance of the Dynamo effect.

How does the Earth's magnetic field protect life on the surface?

What are the implications of Mars lacking a magnetic field compared to Earth?