Using the NASA/ESA Hubble Space Telescope, astronomers have discovered that the brightest galaxies within galaxy clusters ‘wobble’ relative to the cluster’s centre of mass. This unexpected result is inconsistent with predictions made by the current standard model of dark matter, and may provide insights into the nature of dark matter, perhaps even indicating that a new kind of Physics is at work… See http://sci.esa.int/hubble/59708-hubble-discovers-wobbling-galaxies-observations-may-hint-at-nature-of-dark-matter-heic1718/
