The survey was conducted using a breakthrough technique that detects "shadows" of galaxy clusters on...

This is the most distant such object yet observed, and could provide insight into the triggering of ...

The massive galaxy cluster, lying in the constellation of Cetus, is dominated by dark matter and is ...

A study has revealed that many of the star clusters in the galaxy are foreigners - having been born ...

Two ground-based telescopes study in greater detail the larger structure surrounding a massive galax...

Images obtained from three space telescopes open the glorious casket of Jewel Box star cluster which...

The distant galaxy cluster, located about 10.2 billion light years away, surpasses the distance of a...

Japan-U.S. Suzaku mission will provide X-ray View of a Galaxy Cluster....

New Hubble and Chandra observations of the cluster known as MACSJ0025.4-1222 indicate that a titanic...