Scatterings of galactic dark matter (DM) particles with the constituents of celestial bodies could result in their accumulation within these objects, potentially leading to various observable effects. DM annihilations and scatterings could modify the energy transfer inside these objects, and the accumulation of DM could even result in their collapse into a black hole. Additionally, the products of DM annihilations within these objects could represent a potential signal. However, in most scenarios where DM annihilates, neutrinos are the only Standard Model particles that could escape and be detected on Earth. In this talk, I will review scenarios that could be identified through the detection of neutrinos from DM annihilations inside celestial bodies. Finally, I will comment on the effect of the medium's finite temperature, which sets a minimum mass that DM particles must have to remain trapped (the evaporation mass) and potentially produce observable consequences.