Record-breaking Galaxy Cluster Discovered

CL J1001+0220
Credit: X-ray: NASA/CXC/CEA/T. Wang et al; Infrared: ESO/UltraVISTA; Radio: ESO/NAOJ/NRAO/ALMA
A new record for the most distant galaxy cluster has been set using NASA’s Chandra X-ray Observatory and other telescopes, including the Atacama Large Millimeter/submillimeter Array (ALMA) and the National Science Foundation’s Karl G. Jansky’s Very Large Array. This galaxy cluster may have been caught right after birth, a brief, but important stage of evolution never seen before.

The galaxy cluster is called CL J1001+0220 (CL J1001 for short) and is located about 11.1 billion light years from Earth. The discovery of this object pushes back the formation time of galaxy clusters – the largest structures in the Universe held together by gravity – by about 700 million years.

The complete news release is here.

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