Reading ripples in the cosmic microwave background | Science News

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Reading ripples in the cosmic microwave background

New galaxy clusters found and polarizing finds pursued

By
9:03pm, December 10, 2008

VANCOUVER, Canada — Hidden in the peaks and valleys imprinted on the cosmic microwave background — the radiation leftover from the Big Bang — is a wealth of information not only about the early universe but the distribution of matter throughout the cosmos.

On December 8, researchers at the Texas Symposium on Relativistic Astrophysics in Vancouver reported reading some of these imprints to identify three previously unknown galaxy clusters. The find bolsters using the cosmic microwave backgroun

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