2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/174190In this talk we review existing cosmological and astrophysical bounds on light (with the mass in keV - MeV range) and super-weakly interacting dark matter candidates. A particular attention is paid to the sterile neutrino DM candidate.5 pages, 3 figures. Contribution to the proceedings of 4th Patras Workshop on Axions, WIMPs and WISPs, DESY, Hamburg, Germany, 18-21 June 2008Astrophysicstext