Search

In 2002, Ray Davis and Masatoshi Koshiba were awarded the Nobel Prize inPhysics ``for pioneering contributions to astrophysics, in particular for thedetection of cosmic neutrinos.'' However, while astronomy has undergone arevolution in understanding by synthesizing data taken at many wavelengths, theuniverse has only barely been glimpsed in neutrinos, just the Sun and thenearby SN 1987A. An entire universe awaits, and since neutrinos can probeastrophysical objects at densities, energies, and distances that are otherwiseinaccessible, the results are expected to be particularly exciting. Similarly,the revolution in quantitative cosmology has heightened the need for veryprecise tests that depend on the effects of neutrinos, and prominent among themis the search for the effects of neutrino mass, since neutrinos are a small butknown component of the dark matter. In this report, we highlight some of thekey opportunties for progress in neutrino astrophysics and cosmology, and theimplications for other areas of physics.