A penetrating, mesmerizing biography of a scientific icon, now in paperback "Absolutely fascinating . . . Davidson has done a remarkable job."–Sir Arthur C. Clarke "Engaging . . . accessible, carefully documented . . . sophisticated."–Dr. David Hollinger for The New York Times Book Review "Entertaining . . . Davidson treats [the] nuances of Sagan?s complex life with understanding and sympathy."–The Christian Science Monitor "Excellent . . . Davidson acts as a keen critic to Sagan?s works and their vast uncertainties."–Scientific American "A fascinating book about an extraordinary man."–Johnny Carson "Davidson, an award–winning science writer, has written an absorbing portrait of this Pied Piper of planetary science. Davidson thoroughly explores Sagan?s science, wrestles with his politics, and plumbs his personal passions with a telling instinct for the revealing underside of a life lived so publicly."–Los Angeles Times ...