Neutrinos from astrophysical sources carry unique information, complementary to the photons, that is of extraordinarily value to develop our understanding of these objects. Two sources: the Sun and Supernova 1987A have already been observed in neutrinos, and future experiments are expected to detect \nu in different energy ranges from several other sources. This includes E_\nu \sim 10 MeV \nu from gravitational collapse Supernovae and very high energy \nu (E_\nu \aprge 1 TeV) from sources like young supernova Remnants, Gamma Ray Bursts or Active Galactic Nuclei that are likely acceleration sites for cosmic rays. Other more exotic sources are also possible, of particular interest is the search of \nu from Dark Matter annihilation in the center of the Earth and the Sun. The \nu observations have the potential to deeply enrich our vision and understanding of the Universe around us.

PACS numbers: 14.60.Pq, 95.85.Ry