The Best Of Coast To Coast Am

George Noory and Harvard biology and planetary science professor Andy Knoll explore his research into how the planet was formed 4 billion years ago, what jumpstarted life on Earth, and the threats of asteroids and earthquakes that could end life as we know it. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.