Centaurus A (IMAGE) University of California - Irvine Caption Centaurus A, an elliptical galaxy 13 million light-years from Earth, hosts a group of dwarf satellite galaxies co-rotating in a narrow disk, a distribution not predicted by dark-matter-influenced cosmological models. Credit Christian Wolf and the SkyMapper team / Australian National University Usage Restrictions Please credit Christian Wolf and the SkyMapper team at Australian National University License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.