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Astronomy and Astrophysics
Welcome to Laniakea, your galactic supercluster home
Welcome to Laniakea, your galactic supercluster home

Home, supercluster home. Astronomers studying the skies have found that our galaxy, the Milky Way, is part of an enormous supercluster of galaxies that has  been named Laniakea, which comes from the Hawaiian words for “immeasurable heaven.” Laniakea, described in the journal Nature, stretches some 500 million light years across and holds 100,000 galaxies with the mass of a hundred million billion suns.  This supercluster, scientists said, provides a whole new lens on the mysterious internal dynamics of such giant clusters, the biggest structures in the universe. The universe has a certain order, defined by gravity: Planets circle stars, which spin around in...

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