X-ray, Infrared & Radio Images of the CL J1001+0220/Cosmos Cluster
The galaxy cluster CL J1001+0220 is the most distant galaxy cluster ever discovered and may have been caught right after birth, a brief, but important stage of cluster evolution never seen before. These images show CL J1001+0220 in X-rays from Chandra, infrared data from the UltraVISTA telescope, and radio waves from ALMA. 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.
(Credit: X-ray: NASA/CXC/Université Paris/T.Wang et al; Infrared: ESO/UltraVISTA; Radio: ESO/NAOJ/NRAO/ALMA)