Letters

Corrections and Clarifications

Science  26 Jan 2007:
Vol. 315, Issue 5811, pp. 460
DOI: 10.1126/science.315.5811.460b

News of the Week: “Astrobiology fights for its life” by A. Lawler (19 Jan., p. 318). The picture credits on page 320 were reversed. The picture of Lynn Rothschild is courtesy of Roberto Anitori/Lynn Rothschild/NASA, and the Centro de Astrobiologica building in Madrid is courtesy of the center.

News Focus: “Don't pretty up that picture just yet” by J. Couzin (22 Dec 2006, p. 1866). The caption accompanying this image in the story was misleading. The original version of the image is on the left, and the modified one is on the right.

Breakthrough of the Year: “The Poincare conjecture—proved” by D. Mackenzie (22 Dec. 2006, p. 1848). The news story stated that of the three groups that have worked through the missing details of Perelman's papers, only Cao and Zhu claim to have finished the complete proof of the Geometrization Conjecture. In fact, Kleiner and Lott also make that claim.

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