A team of Indian astronomers from Pune based Inter University Centre for Astronomy and Astrophysics has discovered an extremely large supercluster of galaxies which they have named as Saraswati. These are stunningly big which is estimated to be the size of 20 million billion suns.
This is one of the largest known structures in the neighbourhood of the universe, 4,000 million light-years away from Earth and roughly more than 10 billion years old, IUCAA said whose mass extends over the scale od 600 million light years.
A supercluster is a group of 40-43 clusters where each cluster is expected to have galaxies ranging from 1000 to 10,000.
“Superclusters are the largest coherent structures in the cosmic web. They are a chain of galaxies and galaxy clusters, bound by gravity, often stretching to several hundred times the size of clusters of galaxies, consisting of tens of thousands of galaxies,” the IUCAA said in a statement.
“Our own galaxy is part of a supercluster called the Laniakea supercluster,” the IUCAA said.
The supercluster was discovered by the team consisting of Shishir Sankhyayan, a PhD student at the Indian Institute of Science Education and Research, Pune, Pratik Dabhade, IUCAA research fellow, Joe Jacob of the Newman College, Kerala, and Prakash Sarkar of the National Institute of Technology, Jamshedpur.
The find is a record breaking discovery since a supercluster of this size has not been discovered earlier.