<p> Theclusters,markedinredinthevideo,arethoughttoharbormassiveblackholesorlargeamountsofdarkmatter.Locationsofnormalglobularclustersblueandclustersthataresimilartodwarfgalaxiesgreenarealsoshown.ObservationsbytheEuropeanSouthernObservatory39;sVeryLargeTelescopeofellipticalgalaxyCentaurusAwereusedtodiscoverthisquot;newclassofglobularstarclusters.quot;</p>