Journal of Modern Physics, 2015, 6, 490-495 Published Online March 2015 in SciRes. http://www.scirp.org/journal/jmp http://dx.doi.org/10.4236/jmp.2015.64053 How to cite this paper: Barghout, K. (2015) MLG vs. MOND. Journal of Modern Physics, 6, 490-495. http://dx.doi.org/10.4236/jmp.2015.64053 MLG vs. MOND Kamal Barghout Prince Mohammad University, Dhahran, Saudi Arabia Email: kbarghout@pmu.edu.sa Received 1 February 2015; accepted 24 March 2015; published 27 March 2015 Copyright © 2015 by author and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/ Abstract In a recently published paper Metal-Like Gravity (MLG) and Its Cosmological Applications [1], it was determined that a new modification of Newtonian gravity could explain many of the cosmo- logical mysteries such as the nature of dark matter and dark energy. The theory provided a gravi- tational physical system and explained the flatness of the galactic rotational curves (RC). A RC fit that was identical to MOND’s RC fit for spiral galaxies was generated with α as a fitting parameter determined as equal to 1.345. In this paper I am elaborating more on the theory’s cosmological extrapolation of MOND’s critical acceleration a0 . This is done by further assessing the gravitational interaction between the galactic baryonic mass and the halo-DM mass in the star-galaxy overlap- ping volume estimated in MLG framework interpreting a 0 as only a factor induced from the reduc- tion of the galactic luminous mass. It is asserted that MOND and MLG dynamic equations are equiva- lent with MOND’s form, only expressing the equation with an intermediate solution by equating the magnitudes of δ (a parameter that defines a scaled surface galactic DM-density perpendicular to the galactic radial direction in the galaxy-star halo overlapping volume) and G. Keywords MLG, MOND, Antigravity, Flat Rotation Curves 1. Introduction Metal-like gravity (MLG) is a recently published theory that modifies Newtonian gravity by introducing new physics characterized by gravitational interaction between baryonic mass and dark matter mass (DM) as like mass repel and unlike mass attract. It describes DM particles as universal particles that mainly act as the binding agent to baryonic objects in the universe. The theory introduces baryonic objects as mass neutral because they attract much lighter DM particles and form DM-halos. According to MLG, baryonic objects should repel each other. Two baryonic objects can attract each other only when their DM-halos overlap. The theory simply attributes the centripetal force between an edge star and the galactic core to the Newtonian gravitational attractive force be-