News FocusAMERICAN ASTRONOMICAL SOCIETY MEETING

Galaxy Patterns Preserve an Imprint of the Big Bang

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Science  28 Jan 2005:
Vol. 307, Issue 5709, pp. 508
DOI: 10.1126/science.307.5709.508a

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Summary

SAN DIEGO, CALIFORNIA-- Nearly 2500 astronomers skirted floods and a washed-out bridge to attend the largest-ever meeting of the American Astronomical Society, 9 to 13 January. Astronomers have determined that the large-scale structures of galaxies are not random; they preserve a faint echo of sound waves that reverberated through space for about 350,000 years after the big bang.