Institute for Advanced Study/Princeton University High Energy Theory Seminar - ADDED

We examine some of constraints and cosmic clues for the nature of the dark matter. We use these clues and constraints as motivation to examine in greater detail a previously little explored class of models, where the dark matter carries a conserved global charge analogous to baryon number. We discuss the implication of these theories for models of dark matter, and examine a few technical aspects of the evolution of the dark matter density and its implications for astrophysical objects such as neutron stars and white dwarves.