This New York Times best-selling author chronicles America's irrational love affair with Pluto, man's best celestial friend. When the International Astronomical Union voted Pluto out of planethood, Americans rallied behind this extraterrestrial underdog. Far from the sun, tiny, and eccentric in orbit, it's a wonder Pluto has any fans. But Pluto is entrenched in our cultural, patriotic view of the cosmos, and Tyson is on a quest to discover why.