Today we have a real treat; the former Chief Scientist of NASA, Jim Green. We talk about his journey from the fields of Iowa to the top floor of NASA HQ. He shares series of fortunate events - gravity assists as he calls them - that introduced him to astronomy and space exploration, then unique educational opportunities, and a wonderful series of leadership opportunities first connecting NASA and then global institutions using the early internet. We also talk about Jim's other interests including history and civil war hot air ballooning.