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Article: Seeing in the dark; The structure of the universe.(Where can you find dark matter?)
- Article from:
- The Economist (US)
- Article date:
- April 12, 2003
CopyrightCOPYRIGHT 2003 Economist Newspaper Ltd. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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A new computational model, unveiled at a meeting of the American Physical Society, finds that dark matter in the universe is highly organised
PHYSICISTS often say that the universe has a way of making one feel marginalised. The earth is not the centre of the solar system, the sun is not an especially remarkable star and the galaxy that both inhabit is one of many. But earth, sun, galaxy and, indeed, humanity are all special in one way: the stuff they are made of is rare in the universe. The familiar matter that forms atoms accounts for only about 4% of the matter and energy that is around.
Most of the rest is something called "dark energy", which is ...