2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/10486Observational evidence along with theoretical arguments which call for non-baryonic dark matter are reviewed. A brief summary of the dark matter session is included.22 pages, latex, 7 ps figures, Combined Introductory and Summary talks delivered at the Dark Matter seesion at the XXXIst Recontres de Moriond, January 20-27, 1996AstrophysicsHigh Energy Physics - PhenomenologyWhy Do We Need Non-Baryonic Dark Matter?text