Dark Stars: the First Stars in the Universe may be powered by Dark   Matter Heating
  A new line of research on Dark Stars is reviewed, which suggests that the first stars to exist in the universe were powered by dark matter heating rather than by fusion. Weakly Interacting Massive Particles, which may be there own antipartmers, collect inside the first stars and annihilate to produce a heat source that can power the stars. A new stellar phase results, a Dark Star, powered by dark matter annihilation as long as there is dark matter fuel. 
Katherine Freese, Peter Bodenheimer, Paolo Gondolo, and Douglas   Spolyar