Alan Stern, the New Horizons Pluto Mission Leader, joins John and Lynn to explore the story behind his new book, Chasing New Horizons: Inside the Epic First Mission to Pluto, co-written with David Grinspoon. Chasing New Horizons is the story of the men and women behind this amazing mission; their decades-long commitment and persistence; the political fights within and outside of NASA; the sheer human ingenuity it took to design, build and fly the mission; and of the plans for New Horizons’ next