In Masks of the Universe, Edward Harrison brings together fundamental scientific, philosophical and religious issues in cosmology and raises thought provoking questions. Philosophical issues dominated cosmology in the ancient world. Theological issues ranked foremost in the Middle Ages; astronomy and the physical sciences have taken over in more recent times. Yet every attempt to grasp the true nature of the universe creates a new "mask," People have always pitied the universes of their ancestors, believing that their generation has at last discovered the "real" universe. Do we now stand at the threshold of knowing everything, or have we created yet another "mask," doomed to fade like those preceding ours? Edward Harrison is Adjunct Professor of Astronomy, Steward Observatory, University of Arizona, and Emeritus Professor of Physics and Astronomy, University of Massachusetts, Amherst. He worked as a scientist for the Atomic Energy Research Establishment and the Rutherford High Energy Laboratory in England until 1966 when he became a Five College professor at the University of Massachusetts and taught at Amherst, Hampshire, Mount Holyoke, and Smith College. He is the author of numerous books, including Cosmology: the Science of the Universe (Cambridge, 2001).