Mirror Matter-Type Dark Matter

There are six main things which any non-baryonic dark matter theory should endeavour to explain: (1) The basic dark matter particle properties mass, stability, darkness; (2) The similarity in cosmic abundance between ordinary and non-baryonic dark matter, Ω B ~Ω dark ; (3) Large scale structure formation; (4) Microlensing (MACHO) events; (5) Asymptotically flat rotation curves in spiral galaxies; (6) The impressive DAMA/NaI annual modulation signal. Only mirror matter-type dark matter appears capable of explaining all six of these desirable features. The purpose of this article is to provide an up-to-date and pedagogical review of this dark matter candidate.