Albert Einstein once remarked that behind all observable things lay something quite unknowable. And the motivation for his own work in physics stemmed from something as apparently innocuous as his father first showing him a compass when he was a boy. Yet the wonder and inspiration of that moment , which he never forgot, led ultimately to his own stupendous scientific breakthroughs. This book explores that special territory perceived by Einstein: where the unknown takes over from everything that is understandable, familiar, and explicable. And that interface between known and unknown is of the very greatest importance: it lies at the heart of the human quest to take knowledge beyond the boundaries of the known. It is what scientists do when they undertake their research, from the trajectories of comets to the replication of cells. But is is also what religious people do when they start to explore their relationship with what they perceive as the divine. Their mutual effort to "know the unknowable" is a profoundly important way in which human beings explore the limits of themselves, as well as of the universe. Bringing together distinguished contributors, both scientists and theologians (including Rowan Williams the current Archbishop of Canterbury), to explore the implications of what such an invitation means in practice, this groundbreaking book explores important topics like cosmological absence, negativity in Christian mysticism, and the "hiddenness" of God in Buddhism.

The dark matter problem is one of the most fundamental and profoundly difficult problems in the history of science. Not knowing what makes up most of the mass in the Universe goes to the heart of our understanding of the Universe and our place in it. In Search of Dark Matter is the story of the emergence of the dark matter problem, from the initial 'discovery' of dark matter by Jan Oort to contemporary explanations for the nature of dark matter and its role in the origin and evolution of the Universe.

A teacher opens a time capsule that has been dug up at his son's elementary school; in it are some chilling predictions -- some that have already occurred and others that are about to -- that lead him to believe his family plays a role in the events that are about to unfold.

A teacher opens a time capsule that has been dug up at his son's elementary school; in it are some chilling predictions -- some that have already occurred and others that are about to -- that lead him to believe his family plays a role in the events that are about to unfold.