Into the Heart of Our World

The journey to the center of the earth is a voyage like no other we can imagine. Our planet appears tranquil from outer space. And yet the arcs of volcanoes, the earthquake zones, and the auroral glow rippling above our heads are testimony to the remarkable happenings within the earth’s core. For thousands of years these phenomena were explained in legend and myth. Only in recent times has the brave new science of seismology emerged. One hundred and fifty years after the extraordinary, imag...