“Book Descriptions: MYSTERIES THAT HAVE PUZZLED THE GREATEST SCIENTISTS Astonishing advances in science have transformed our lives. And yet, for now, solutions to some fundamental questions still lie tantalizingly out of reach. Here at the cutting edge of science truth is often stranger than fiction, and luminaries race to find answers that could win them Nobel Prizes or create unimaginable new problems. Unsolved Science collects the most significant and mind-boggling questions troubling the planet’s greatest minds, such as: • Why did a dizzying variety of complex animals appear on Earth in a relatively short space of time, after three billion years of single-celled organisms? • How do the chemical processes in our brains explain the ways we think and experience the world? • What are dark matter and dark energy, and why do they take up 95 percent of the universe? Each fascinating problem is explored with concise but thorough reviews of its background, key figures, and leading current theories. As well, Unsolved Science is beautifully illustrated with more than 130 photographs, paintings, illustrations, diagrams, and maps.” DRIVE