Physicists analyze rotational dynamics of galaxies and influence of the photon mass
The rotation of stars in galaxies such as our Milky Way is puzzling. The orbital speeds of stars should decrease with their distance from the center of the galaxy, but in fact they all have the same rotational speed. The physicists have hypothesized that the rotational dynamics of galaxies might be explained by the mass of photons, which are particles of light. …read more
