  Studies in nuclear astrophysics have long been associated with long runs at
small accelerators, measuring ever-decreasing cross sections as one approached
(but rarely reached) the energy of reactions in stars. But in recent years
pioneering studies have shown that studies at high-energy accelerators can
often yield the same information, and in some important cases, provide
information not otherwise available. This is particularly so for studies of the
properties and reactions of the short-lived radioactive nuclei that play a
crucial role in explosive phenomena such as novae, supernovae, and neutron
stars. I'll give an overview of some of the possibilities, and then concentrate
on two extended examples: measurements of the rates of radioactive capture
reactions using Coulomb breakup reactions, and the relationship of charge
exchange cross sections and beta-decay strength for L = 1 transitions.
