Did Newton "unweave the rainbow" by reducing it to its prismatic colors, as Keats contended? Did he, in other words, diminish beauty? Far from it, says Dawkins - Newton's unweaving is the key to much of modern astronomy and to the breathtaking poetry of modern cosmology. Mysteries don't lose their poetry because they are solved; the solution is often more beautiful than the puzzle, uncovering deeper mystery. Dawkins takes up the most important and compelling topics in modern science, from astronomy and genetics to language and virtual reality, and combines them in a landmark statement of the human appetite for wonder.