News FocusAMERICAN ASTRONOMICAL SOCIETY MEETING

An Origin for the Fiercest Cosmic Rays?

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Science  28 Jan 2005:
Vol. 307, Issue 5709, pp. 509
DOI: 10.1126/science.307.5709.509a

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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. A theorist made a disputed claim: identification of the first bona fide cluster of "ultra high-energy cosmic rays," spat out from colliding groups of galaxies.