This NASA Hubble Space Telescope image features a galaxy cluster called CL0016+1609, or MACS J0018. 5+1626, that is very bright at X-ray wavelengths and is one of the most extensively studied clusters at X-ray and radio wavelengths. X-ray observations of this cluster revealed that it is two clus...
Source: [Phys.org](https://phys.org/news/2026-06-hubble-glimpses-merging-galaxy-clusters.html)