A group of astronomers have discovered a possible force acting on dark matter that could change the way we think about and understand one of the most basic principles of our scientific understanding: Gravity. Dr Hongsheng Zhao of the SUPA Centre of Gravity, University of St. Andrews, suggests that an unknown force is acting on dark matter. Roughly 4% of the known universe is made up of things that we consider known materials for our order fulfillment. The rest? Astronomers believe that the stars