Decays of Long Lived Lightest Supersymmetric Particles in the Galactic Halo

If dark matter neutral LSPs in the galactic halo decay into two body final states containing photons or neutrinos they could be detected even if the decay rates are very small, 10**{-32} per sec. I calculate mass and lifetime bounds from current astrophysical data on monochromatic photons and neutrinos and suggest that the poorly explored region between 10 GeV and 1 TeV be explored for signs of supersymmetry from space.