These essays look squarely at large, tough, all-encompassing ideas, but they don't ignore the small specifics that multiply into a day, for example, one "lone o

What we know about dark matter and what we have yet to discover Astronomical observations have confirmed dark matter’s existence, but what exactly is dark mat

The far-flung imperial frontier is no place for greenhorns. Two Toes, the renegade Tigerillian war chief, is off the reservation and slaughtering human settlers

This book brings together reviews from leading international authorities on the developments in the study of dark matter and dark energy, as seen from both thei