Dark Matter Mapped...

Discussion in 'Astronomy, Exobiology, & Cosmology' started by wet1, Apr 10, 2002.

  1. wet1 Wanderer Registered Senior Member

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    Dark Matter Mapped in a Supercluster of Galaxies


    When astronomers observe other galaxies and the universe as a whole, they see effects of gravity that cannot be explained by the stars, gas, dust and other matter they find. Something else must be there.
    That something else is called dark matter. No one has ever seen it, and nobody knows exactly what it is. But researchers are beginning to map the mysterious stuff, which is thought to make up roughly 80 percent of all the matter in the universe.
    Along the way, studies have indicated that dark matter clumps together and may act as the seeds for galaxy formation. Dark matter also seems to hold clusters of galaxies together, which in turn are bonded into superclusters.

    For the rest of the article:*here*
     

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