Dark globular cluster

The observational data for dark globular clusters comes from the Very Large Telescope (VLT) in Chile which observed the vicinity of the galaxy Centaurus A.^[2] Many of the globular clusters inside that galaxy are brighter and more massive than those orbiting the Milky Way and a sample of 125 globular clusters around Centaurus A was studied using the VLT's FLAMES instrument.^[2] While globular clusters are normally considered to be almost devoid of dark matter,^[2] the study of the dynamical properties of sampled clusters suggested the presence of exotically concentrated dark matter.^[1] The existence of dark globular clusters would suggest that their formation and evolution are markedly different from other globular clusters in Centaurus A and the Local Group.^[1]