“690 Trillion Suns” -New Look at an Ancient Object So Bright It Obscured a Massive Galaxy Cluster
Sensitive probes into the very nature of the cosmos
"The discovery of this hidden cluster shows there may be other similar galaxy clusters hiding behind extremely bright objects that astronomers have miscatalogued as single light sources. The researchers are now looking for more hidden galaxy clusters, which could be important clues to estimating how much matter there is in the universe and how fast the universe is expanding. As the largest bound objects in the Universe, galaxy clusters are sensitive probes into the very nature of the cosmos, but if we are missing even a small number of the total population we may infer a different universe than the one we live in.”