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Article: Dark matter: a cosmos that runs hot and cold. (formation of hot and cold dark matter)
- Article from:
- Science News
- Article date:
- July 31, 1993
- Author:
CopyrightCOPYRIGHT 1993 Science Service, Inc. 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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Speculating about the interplay of subatomic particles in the early universe, astrophysicists say they have found a way to forge a more coherent theory from two seemingly disparate models of the evolution of large-scale structure in the cosmos.
In part, the researchers were motivated by a long-standing cosmological puzzle: Although the universe began as a smooth mix of matter and energy, it somehow evolved into a lumpy collection of stars and galaxies.
To account for the clumpiness of the present-day universe, many researchers have invoked the notion of dark matter-weakly interacting, invisible material that doesn't glow like ordinary matter but does ...