A Walk Through Time is a landmark book, gorgeously illustrating the remarkable drama of the history of the universe, from the furious blast of the Big Bang to the first pulse of life on Earth, and on through the rich pageant of life’s evolution from primordial microbes to the rise of Homo sapiens. Spanning 15 billion years, the story of life’s greatest mysteries emerges here through 130 beautiful four-color illustrations and an absorbing narrative. Combining the knowledge of three expert authors, the text covers the most up-to-date findings, including new understandings about how the universe coalesced into galaxies and planets; how microscopic animals can survive in such super-heated environments as deep-sea vents and inside the Earth’s core, and the possibility that water came to our planet from space in the form of millions of tiny comets. A Walk Through Time gives readers a new perspective on awe-inspiring processes that produced us and our place in the universe.