How the Earth Works takes you on an astonishing journey through time and space. In 48 half-hour lectures, you will look at what went into making our planet—from the big bang, to the formation of the solar system, to the subsequent evolution of Earth. You will travel to the center of our planet and out again, charting the geologic forces that churn beneath our feet to push the continents and seafloor around like so much froth on the surface of a pot of soup.