Where the science of black holes, gravitational waves, and time travel will likely lead us, as reported by spacetime's most important theoreticians and observers.

A group of leading physicists--Stephen Hawking, Kip S. Thorne, Igor Novikov, Timothy Ferris, and Alan Lightman--paints a vivid portrait of the possible future of black holes, gravity holes, and time travel in six readible essays that explore the deepest mysteries of the universe.

A spacetime appetizer -- Relatively speaking -- Einstein on trial -- Wave talk and bar fights -- The lives of stars -- Clockwork precision -- Laser quest -- The path to perfection -- Creation stories -- Cold case -- Gotcha -- Black magic -- Nanoscience -- Follow-up questions -- Space invaders -- Surf's up for Einstein wave astronomy

One of TIME’s Ten Best Nonfiction Books of the Decade "Meet the new Stephen Hawking . . . The Order of Time is a dazzling book." --The Sunday Times From the bestselling author of Seven Brief Lessons on Physics, Reality Is Not What It Seems, Helgoland, and Anaximander comes a concise, elegant exploration of time. Why do we remember the past and not the future? What does it mean for time to "flow"? Do we exist in time or does time exist in us? In lyric, accessible prose, Carlo Rovelli invites us to consider questions about the nature of time that continue to puzzle physicists and philosophers alike. For most readers this is unfamiliar terrain. We all experience time, but the more scientists learn about it, the more mysterious it remains. We think of it as uniform and universal, moving steadily from past to future, measured by clocks. Rovelli tears down these assumptions one by one, revealing a strange universe where at the most fundamental level time disappears. He explains how the theory of quantum gravity attempts to understand and give meaning to the resulting extreme landscape of this timeless world. Weaving together ideas from philosophy, science and literature, he suggests that our perception of the flow of time depends on our perspective, better understood starting from the structure of our brain and emotions than from the physical universe. Already a bestseller in Italy, and written with the poetic vitality that made Seven Brief Lessons on Physics so appealing, The Order of Time offers a profoundly intelligent, culturally rich, novel appreciation of the mysteries of time.

Based on lectures given in honour of Stephen Hawking's sixtieth birthday, this book comprises contributions from some of the world's leading theoretical physicists. It begins with a section containing chapters by successful scientific popularisers, bringing to life both Hawking's work and other exciting developments in physics. The book then goes on to provide a critical evaluation of advanced subjects in modern cosmology and theoretical physics. Topics covered include the origin of the universe, warped spacetime, cosmological singularities, quantum gravity, black holes, string theory, quantum cosmology and inflation. As well as providing a fascinating overview of the wide variety of subject areas to which Stephen Hawking has contributed, this book represents an important assessment of prospects for the future of fundamental physics and cosmology.

Einstein's General Theory of Relativity leads to two remarkable predictions: first, that the ultimate destiny of many massive stars is to undergo gravitational collapse and to disappear from view, leaving behind a 'black hole' in space; and secondly, that there will exist singularities in space-time itself. These singularities are places where space-time begins or ends, and the presently known laws of physics break down. They will occur inside black holes, and in the past are what might be construed as the beginning of the universe. To show how these predictions arise, the authors discuss the General Theory of Relativity in the large. Starting with a precise formulation of the theory and an account of the necessary background of differential geometry, the significance of space-time curvature is discussed and the global properties of a number of exact solutions of Einstein's field equations are examined. The theory of the causal structure of a general space-time is developed, and is used to study black holes and to prove a number of theorems establishing the inevitability of singualarities under certain conditions. A discussion of the Cauchy problem for General Relativity is also included in this 1973 book.

In this volume, leading researchers bring together current work on time perception and time-based prospective memory in order to understand how people time their intentions. This is the first account of many important topics concerning the timing of behavior, offered by scientists of diverse fields who in the past have exhibited an attitude of mutual 'benign neglect'. An explication of the rules which govern timing the future are of fundamental interest to anyone who wishes to explore the potential of human experience.Prospective memory — especially time-based — is a relatively unexplored way to study memory and few studies have been devoted to its neurobiological foundations. This volume aims to fill this void and will boost further interest in the field, while stimulating interdisciplinary research.

A behind-the-scenes look at the making of the iconic Back to the Future trilogy—the perfect movie gift for fans of the franchise, actors, writers, and filmmakers who contributed to this beloved pop culture phenomenon. Long before Marty McFly and Doc Brown traveled through time in a flying DeLorean, director Robert Zemeckis, and his friend and writing partner Bob Gale, worked tirelessly to break into the industry with a hit. During their journey to realize their dream, they encountered unprecedented challenges and regularly took the difficult way out. For the first time ever, the story of how these two young filmmakers struck lightning is being told by those who witnessed it. We Don’t Need Roads draws from over 500 hours of interviews, including original interviews with Zemeckis, Gale, Christopher Lloyd, Lea Thompson, Huey Lewis, and over fifty others who contributed to one of the most popular and profitable film trilogies of all time. The book includes a 16-page color photo insert with behind-the-scenes pictures, concept art, and more. With a focus not only on the movies, but also the lasting impact of the franchise and its fandom, We Don’t Need Roads is the ultimate read for anyone who has ever wanted to ride a Hoverboard, hang from the top of a clock tower, travel through the space-time continuum, or find out what really happened to Eric Stoltz after the first six weeks of filming. So, why don’t you make like a tree and get outta here—and start reading! We Don’t Need Roads is your density. “What fun! Deeply researched and engagingly written...the book Back to the Future fans have been craving for decades. Geekily enthusiastic and chock full of never-before-heard tales of what went on both on and off the screen, We Don't Need Roads is a book worthy of the beloved trilogy itself.”—Brian Jay Jones, author of the national bestseller Jim Henson: The Biography “A very compelling and enjoyable history of our trilogy. For me, reading it was like going back in time. And—Great Scott—there were even a few anecdotes that I'd never heard!”—Bob Gale, co-creator, co-producer, and co-writer of the Back to the Future trilogy

A futuristic reimaging of the classic Greek myth, as a boy ventures through deep space and challenges the awesome power of black holes. The beauty of the book lies in the images, provided by NASA and the Hubble Space telescope, and printed on board rather than paper.

The last century has seen enormous progress in our understanding of time. This volume features original essays by the foremost philosophers of time discussing the goals and methodology of the philosophy of time, and examining the best way to move forward with regard to the field's core issues. The collection is unique in combining cutting edge work on time with a focus on the big picture of time studies as a discipline. The major questions asked include: What are the implications of relativity and quantum physics on our understanding of time? Is the passage of time real, or just a subjective phenomenon? Are the past and future real, or is the present all that exists? If the future is real and unchanging (as contemporary physics seems to suggest), how is free will possible? Since only the present moment is perceived, how does the experience as we know it come about? How does experience take on its character of a continuous flow of moments or events? What explains the apparent one-way direction of time? Is time travel a logical/metaphysical possibility?