This ghost galaxy is 99% dark matter with only four star clusters

CDG-2 (short for Candidate Dark Galaxy-2) has so few stars that it's basically invisible. The only reason anyone noticed it at all is that four globular clusters were hanging out together about 300 million light-years from Earth, deep inside the Perseus cluster, with no obvious host galaxy in sight. — Read the rest

The post This ghost galaxy is 99% dark matter with only four star clusters appeared first on Boing Boing.