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Science 27 September 2002:
Vol. 297. no. 5590, p. 2184
DOI: 10.1126/science.297.5590.2184
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News of the Week

MICROWAVE BACKGROUND:
Subtle Signals in Ancient Light Promise New View of Cosmos

Charles Seife

CHICAGO, ILLINOIS--At a meeting here last week, physicists announced the first detection of polarization in the cosmic microwave background (CMB), the light left over from the very early ages of the cosmos. The much-anticipated result is squarely in line with theoretical predictions, a sign that physicists' theories about the makeup and evolution of the universe are on track. The achievement also heralds the start of a new approach for deciphering the CMB.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)