**The Hubble Space Telescope** has produced the most stunning images of the cosmos humanity has ever seen. It has transformed our understanding of the universe, about its age and evolution, the life cycle of stars, and the very existence of black holes. The Hubble was designed after World War II, when astronomer **Lyman Spitzer** and a handful of scientists waged a fifty year struggle to build the first space telescope capable of seeing beyond Earth's atmospheric veil. **Robert Zimmerman,** author of *The Universe in a Mirror: The Saga of the Hubble Space Telescope and the Visionaries Who Built It*, takes us behind the scenes, explaining how some of Hubble's advocates sacrificed careers and family, and how others devoted their lives to the telescope only to have their hopes and reputations shattered when its mirror was found to be flawed. Zimmerman is an award-winning science writer and historian whose work has appeared in *Natural History*, the *Wall Street Journal* and *Astronomy*, among other leading publications.