Podcast: Journey to the Center of the Earth

What do earthquakes, the moon, and the earth's magnetic field have in common? They're all connected to the iron core deep inside our planet.On this week's podcast, join me on a journey to the center of the earth. First, Planetary Science Professor Raymond Jeanloz from the University of California Berkeley will guide us through the iron catastrophe, the event that formed the earth's core. Surprisingly, it has a lot of do with the planetary impact that chipped the moon from early earth. A simulati...