What Lies Within

Beneath the familiar surface of the Earth lies another world-vast, dynamic, essential, and permanently beyond human reach.

What Lies Within: The Earth's Core and the Limits of Knowing explores how scientists understand the planet's interior without ever seeing or touching it, and what that distance reveals about knowledge, control, and human dependence.

Everything known about the Earth's deepest layers comes through inference. Seismic waves bend and slow. Magnetic fields shift. Heat rises. Fr...