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This is Scientific American 60-Second Space. I'm Clara Moskowitz. Got a minute?

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We finally know our cosmic address.

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For the first time, astronomers have identified our home supercluster,

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a conglomeration of groups of galaxies and larger clusters of galaxies, all interconnected in a stringy web.

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Researchers, led by an astronomer at the University of Hawaii at Manoa, have named this supercluster Laniakea, which means "immense heaven" in Hawaiian.

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Laniakea encompasses 100,000 galaxies stretched out over 500 million light-years.

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Our own Milky Way is just one of these.

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The study is in the journal Nature.

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Superclusters are some of the universe's largest structures, and have boundaries that are tough to define especially from inside one.

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The team used radio telescopes to map out the motions of a large collection of local galaxies.

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Within a given supercluster, all galaxy motions will be directed inward, toward the center of mass.

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In the case of Laniakea, this gravitational focal point is called the Great Attractor,

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and influences the motions of our Local Group of galaxies and all others throughout our supercluster.

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It's time to update our intergalactic maps: Laniakea is home sweet home.

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Thanks for the minute, for Scientific American 60-Second Space. I'm Clara Moskowitz.

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