“The Edge of Knowledge takes us on a stirring tour of the cosmic frontier, where our knowledge is incomplete, our understanding is fragmentary, and our insights are flawed. But that’s precisely the terrain that science navigates daily when decoding the operations of nature. And for that, there’s no better tour guide than Lawrence Krauss.” (Neil deGrasse Tyson, author, Starry Messenger: Cosmic Perspectives on Civilization)

“What an achievement: science, the beauty of science, the adventure of science so well expressed. Even a wretched innumerate like me can grasp the excitement of the key stories in discovery that Lawrence Krauss tells with such spellbinding clarity and generous authority. Throughout it all runs a vivid and deeply important reminder of science’s respect for mistakes: doubt, the unknown and contingent truths that are always up for being questioned, reassessed, and refined. A book that reawakens wonder.” (Stephen Fry, actor, author, broadcaster, and campaigner, and author most recently of Fry’s Ties)

“With the ease of a master, Lawrence Krauss takes us on a sightseeing tour to the biggest unknowns in the universe. A breathtaking trip to the frontiers of knowledge and beyond.” (Sabine Hossenfelder, physicist and author of Existential Physics: A Scientist’s Guide to Life’s Biggest Questions)