This is a book that makes science fascinating and wondrous. I only wish this had been around when I was in school. I might have taken a different attitude to various courses. This book begins with the most beautiful introduction, noting how unique every person is and how lucky we are to be here, since every single ancestor survived long enough to pass on genes to a descendent. The stories and characters involved in many discoveries are often entertaining. Marvel at the expected effects of a potential killer asteroid (just a matter of time). The supervolcano in Yellowstone is due for an eruption. You will love this book if you like disaster movies. You will like it anyway, it makes you chuckle, think, ponder. It also takes a sobering look at the impact we have on the world. It may take a second reading to really capture all the information here. The second half of the book was riveting.