We exist because of the moon. Rebecca Boyle relates the amazing story of how the moon, born of a cataclysmic collision with an infant earth, has shaped our history, our evolution, and even our very existence.

Her new book tracks the momentous events of the 1960s when her husband, Dick Goodwin, worked closely with both JFK and LBJ, and Doris worked with LBJ, as the two very different presidents shaped the future.

Alan and Executive Producer Graham Chedd chat about and play excerpts from Alan's conversations with some of the guests in the new season, beginning next week. Guests include newspaper editor Adam Moss; science journalist Rebecca Boyle; and writers Kelly and Zach Weinersmith.