TPI CONFERENCE

In this paper I have tried to present a case for dark matter using a Newtonian approach. I have also tried to present the evidence for the same. In the first three sections of the paper, I have established a relationship between gravitation and velocity using Newton’s laws and then showed how the rotation velocities of the galaxies in the Coma cluster do not follow the predicted values of the velocities and finally how inclusion of extra mass can explain the apparent disagreement of the observed phenomenon with the predicted values. In the next two sections I have tried to provide some evidence for the presence of dark matter in our universe.