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"This book explores the subject in the context of quantum gravity. A novel approach to uncover the dark faces of the standard model of cosmology. The possibility that dark energy and dark matter are manifestations of the inhomogeneous geometry of our universe. On the history of cosmological model building and the general architecture of cosmological modes. Illustrations on the large scale structure of the universe. A new perspective on the classical static Einstein cosmos. Global properties of world models including their topology. The arrow of time in a universe with a positive cosmological constant. Exploring the consequences of a fundamental cosmological constant for our universe. Exploring why the current observed acceleration of the universe may not be its final destiny. Demonstrating that nature forbids the existence of a pure cosmological constant. Our current understanding of the long term (in time scales that greatly exceed the current age of the universe) future of the universe. And the long term fate and eventual destruction of the astrophysical objects that populate the universe, including clusters, galaxies, stars, planets, and black holes."

"A major outstanding problem in physics is understanding the nature of the dark energy that is driving the accelerating expansion of the Universe. This thesis makes a significant contribution by demonstrating, for the first time, using state-of-the-art computer simulations, that the interpretation of future galaxy survey measurements is far more subtle than is widely assumed, and that a major revision to our models of these effects is urgently needed. The work contained in the thesis was used by the WiggleZ dark energy survey to measure the growth rate of cosmic structure in 2011 and had a direct impact on the design of the surveys to be conducted by the European Space Agency's Euclid mission, a 650 million euro project to measure dark energy."

"This is the story of one of the most remarkable figures of our time - Professor Stephen Hawking, the Cambridge genius who has earned an international reputation as the most brilliant theoretical physicist since Einstein. This is not quite a biography; it is more the story of one man's quest to find the 'Theory of Everything'. Stephen Hawking's life and work have produced a multitude of amazing paradoxes: beginnings may be endings, two great scientific theories taken together may seem to give us nonsense, empty space isn't empty, and black holes aren't black. Cruel circumstances can lead to happiness, and fame and success may not. A man whose appearance inspires shock and pity takes us to where the boundaries of space and time ought to be - but are not. Substantially updated with new information drawn from interviews with Professor Hawking regarding his theories and personal life, together with fascinating new photographs from his early life to the present day, this is an insightful and captivating account of an extraordinary life and a brilliant mind"