In this book, rotation dynamics of galaxies is described using coupled field equations for the gravitational and electromagnetic fields. Relativistic frame-dragging effect is one of the consequences predicted by the general theory of relativity for rotating masses. However, except for strong gravitational sources, the spacetime dragging is too weak to produce significant modifications around rotating astrophysical systems. Here it is shown that, in the case of gravitational and magnetic field coupling, the effects of magnetic field energy density are enhanced. An outward dragging caused by...