The clusters, marked in red in the video, are thought to harbor massive black holes or large amounts of dark matter. Locations of normal globular clusters (blue) and clusters that are similar to dwarf galaxies (green) are also shown.
The clusters, marked in red in the video, are thought to harbor massive black holes or large amounts of dark matter. Locations of normal globular clusters (blue) and clusters that are similar to dwarf galaxies (green) are also shown.