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AUSTIN, TEXAS-Astronomers have made the largest map yet of dark matter in the universe. This invisible stuff gives off no light, but it does exert gravity on its surroundings. It probably consists of unknown elementary particles, and it's much more prevalent than the normal matter from which stars, planets, and people are made.
The new map shows that dark matter is concentrated in huge clumps and filaments, with giant, empty regions in between—just as computer simulations had predicted. "We're very happy to see that our results are similar to what we expected," says astrophysicist Ludovic Van Waerbeke of the University of British Columbia, Vancouver, in Canada.
The new map shows that dark matter is concentrated in huge clumps and filaments, with giant, empty regions in between—just as computer simulations had predicted. "We're very happy to see that our results are similar to what we expected," says astrophysicist Ludovic Van Waerbeke of the University of British Columbia, Vancouver, in Canada.
Science Magazine: A Guide to the Dark Side
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