article_snippet: The bold new theory was put forward by scientists from Durham University.
article_snippet: When physicists study the dynamics of galaxies and the movement of stars, physicists are confronted with a mystery.
article_snippet: If physicists only take visible matter into account, physicists equations simply don't add up; the elements that can be observed are not sufficient to explain the rotation of objects and the existing gravitational forces.
article_snippet: From this physicists deduced that there must be an invisible kind of matter that does not interact with light but does, as a whole, interact by means of the gravitational force.
article_snippet: ‘Their model relies on the assumption that Their model is the change in momentum during particle collisions between dark and normal matter that drive the nature of the interactions between particles.
article_snippet: The researchers also note that The researchers theory is consistent with predicted properties of dark matter that is being searched for with detectors on Earth and in space.