On the Matter-Antimatter Asymmetry and Dark Matter

According to the composite photon theory, there is a complete disconnect between matter and antimatter galaxies. Antimatter is transparent to photons and matter is transparent to antiphotons that are identified as ``dark photons.'' Thus, antimatter galaxies would appear to us as dark matter, and our Milky Way would appear as dark matter to a creature in an antimatter galaxy. The evidence against the existence of antimatter galaxies is re-examined in light of this new theory [1]. [1] W. A. Perkins, Modern Physics Letters A, Vol. 30, 1550157 (2015).