Of Clusters and Galaxies

Science  26 Jul 2002:
Vol. 297, Issue 5581, pp. 532-533
DOI: 10.1126/science.1074922

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Globular clusters--compact and bright assemblies of stars--were long believed to have formed early in our galaxy's evolution. But as Clement explains in her Perspective, recent studies point to another, more recent source. During encounters with other, smaller galaxies, clusters may be captured. As a result, some long-held assumptions about globular clusters may need to be revised, as reported by Yoon and Lee.