what is the largest object in the universe?
And our Sun is more than a million Earths in size. But, what is the largest object in our universe? At first, astronomers thought that our galaxy cluster is the largest structure or object in the universe. But it wasn't until the 1980s that astronomers realized that a cluster of galaxies (including our galaxy cluster) is gravitationally bound and connected to other galaxy clusters in structures called galaxy superclusters. The largest known supercluster in the universe is the Hercules-Corona Borealis Great Wall. This supercluster was first reported to exist in 2013 and has been studied several times by different international teams of astronomers. This supercluster is so large, its diameter is estimated to be 10 billion light years! For perspective, the observable universe is “only” 13.7 billion years in diameter. The unusually large supercluster was first observed by a team of astronomers led by Istvan Horvath, of the National University of Public Service in Hungary. At that tim...