Until now, the Milky Way was believed to be one galaxy in the 2,000 that make up what’s known as the Virgo Supercluster. But as a new three-dimensional star map shows, the Milky Way’s 100 billion stars are actually part of something 100 times bigger: a supercluster of galaxies astronomers have now christened Laniakea, meaning “immense heavens” in Hawaiian.

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