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Saraswati supercluster

  • A team of Indian astronomers have identified previously unknown, extremely large supercluster of galaxies called Saraswati
  • Saraswati supercluster is one of the largest known structures in the nearby universe.
  • It is 4 billion light years away from Earth and may contain the mass equivalent of over 20 million billion suns.
  • It has 43 galaxies that may contain thousands of suns, besides having billions of stars, planets, other bodies, gases and dark matter.
  • It is estimated to be stretched over 650 million light years in distance.
  • The discovery of Saraswati supercluster will help astronomers in understanding galaxy formation and evolution, effect of superclusters on environment of the galaxies.

What is a Supercluster?

  • A supercluster is a chain of galaxies and galaxy clusters.
  • It is bound by gravity consisting of tens of thousands of galaxies.
  • It often stretches several hundred times the size of clusters of galaxies.
  • Thus, it can be said, galaxies are made of billions of stars and planets and grouped into clusters.
  • These clusters of galaxies, in turn, are grouped together to form superclusters.
  • The Milky Way, the galaxy in which earth is located is part of a supercluster called the Laniakea Supercluster.
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October 2022
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