Supernovae their bearing on cosmology and their connection to gamma-ray bursts are now at the
center of astrophysical research programs. This volume deals with astronomical observations of
supernovae and their relation to nuclear and particle astrophysics. All known aspects of
supernovae explosions are investigated in articles specifically written for researchers and
advanced graduate students. It also includes recent numerical experiments related to the
question of hydrodynamical instability in two and three dimensions and to problems concerning
the complexity of radiation transport in the models. Other contributions discuss the possible
energy sources needed to drive these powerful stellar explosions.