A group of Indian astronomers have discovered a massive supercluster of galaxies, and have named it Saraswati.
The supercluster is about 4 billion light years away and spreads about 600 million light years across.
This makes it one of the largest superclusters to be discovered and also the furthest.
The first supercluster of galaxies, the Shapley Supercluster, was discovered in 1989, and the second, the Sloan Great Wall in 2003.
The Milky Way galaxy is part of the Laniakea Supercluster, which was discovered in 2014.
A galaxy cluster, or cluster of galaxies, is a structure that consists of anywhere from hundreds to thousands of galaxies that are bound together by gravity.
A supercluster is a large group of smaller galaxy clusters or galaxy groups, which is among the largest-known structures.
They are the largest known gravitationally bound structures in the universe.
