Overview
- The object, dubbed Candidate Dark Galaxy-2, shows a faint diffuse glow surrounding four tightly grouped globular clusters.
- Peer-reviewed analysis in The Astrophysical Journal Letters reports that roughly 99% of the system’s mass appears to be dark matter.
- Researchers describe it as the first galaxy detected solely through its globular cluster population.
- Preliminary luminosity estimates diverge across reports, ranging from about 1 million to about 6 million Sun-like stars, with the clusters contributing roughly 16% of the visible content.
- The statistical search method that flagged CDG-2 also identified 10 previously confirmed low-surface-brightness galaxies and two additional dark-galaxy candidates.