Essay aus dem Jahr 2016 im Fachbereich Astronomie, Note: N/A, , Sprache: Deutsch, Abstract: This paper questions the widely accepted concept of 'dark matter', used to explain discrepancies between the current theory of gravity, as it relates to the visible mass of the universe (ie. stars, dust and gas), and the observations of the movements of stars in the spiral arms of galaxies and in clusters of galaxies. The idea of dark matter, developed in 1932 by Jan Oort and in 1933 by Fritz Zwicky, was used to explain why the observed movements of stars were are not following Kepler's third law, being the relationship between the distance of an orbiting object and it's orbital period. In this paper, I am suggesting that the gross effects of these observations are in reality the combined effects of both gravity and magnetic fields, and also the reasoning to support this hypothesis. In this paper, as well, I have tried to explain my hypothesis through language which is not overtly technical, so that an intelligent layperson would be able to understand it. It is hoped that the practical and theoretical significance of my paper will result in a re-examination of the basic, underlying foundations supporting the idea of dark matter, and that this re-examination will result in a theory which does not need to rely upon an invisible, untouchable, and all encompassing gravational source as being one of the basic planks of the theory of the universe.