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Intergalactic crash scene among universe's largest things

Discussion in 'Off-topic Zone' started by jobberone, Feb 2, 2013.

  1. jobberone

    jobberone Right turn Clyde Staff Member

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    A glowing cosmic structure millions of light-years long represents the aftermath of the impact of two merging galaxy clusters, researchers say.

    "This is one of the biggest structures ever observed," study lead author Ettore Carretti told SPACE.com. "It is more than 100 times the size of our galaxy, the Milky Way, which already stretches for 100,000 light-years."

    Carretti, an astrophysicist at the Commonwealth Scientific and Industrial Research Organization in Australia, and his colleagues used the Parkes Radio Telescope in New South Wales to analyze a cluster of galaxies known as Abell 3667. The cluster lies about 730 million light-years from Earth. (A light-year is the distance light travels in one year, about 5.9 trillion miles.)

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