A unique and wide-ranging review of one of the most dramatic research results in astronomy in recent decades.Observations of distant supernovae have recently provided startling evidence that the expansion of the Universe may be accelerating. If this result is verified by future studies, it has profound implications for cosmology. The reliability of this finding and its implications for the study of supernovae and cosmology are the subject of this exciting volume. Based on a conference at the University of Chicago, this timely volume presents articles by leading experts on the theory of supernovae, observational astronomy, and cosmology. This is a unique and wide-ranging review of one of the most dramatic results in astronomy in recent decades. It makes fascinating reading for all researchers and graduate students.Observations of distant supernovae have recently provided startling evidence that the expansion of the Universe may be accelerating. If this result is verified by future studies, it has profound implications for cosmology. The reliability of this finding and its implications for the study of supernovae and cosmology are the subject of this exciting volume. Based on a conference at the University of Chicago, this timely volume presents articles by leading experts on the theory of supernovae, observational astronomy, and cosmology. This is a unique and wide-ranging review of one of the most dramatic results in astronomy in recent decades. It makes fascinating reading for all researchers and graduate students.Observations of distant supernovae have recently provided startling evidence of the accelerating expansion of the Universe. The reliability of this finding and its profound implications for both the study of supernovae and cosmology are the subject of this exciting volume. Here, articles by leading experts explore the theory of Type Ia supernovae, observational astronomy, and cosmology. In addition, they examine observational data, the nature of thelÓ&