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<jats:p>In science news around the world this week, the world's biggest telescope held its inauguration ceremony, the National Science Foundation is investigating nearly 100 cases of suspected plagiarism, a bid to restrict polar bear trade failed, and more.</jats:p>

<jats:p>This week, what life might lurk in Lake Vostok remains a mystery despite a recent declaration that a new species of bacteria had been found, and Facebook users may be revealing much more than they anticipate with each click of a "Like" button.</jats:p>

<jats:p> Follow the links below for a roundup of the week's top stories in science, or <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/339/6125/1258.1.full.pdf">download a PDF of the entire section</jats:ext-link> . <jats:list list-type="bullet"> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/339/6125/1258.2.summary">Around the World</jats:ext-link> </jats:p> </jats:list-item> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/339/6125/findings.full">Findings</jats:ext-link> </jats:p> </jats:list-item> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/339/6125/1258.3.summary">Random Samples</jats:ext-link> </jats:p> </jats:list-item> <jats:list-item> <jats:p> <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/content/339/6125/1259.1.summary">Newsmakers</jats:ext-link> </jats:p> </jats:list-item> </jats:list> </jats:p>

<jats:p>Virologist Ilaria Capua of the Istituto Zooprofilattico Sperimentale delle Venezie will enter the Italian parliament as a newly elected deputy. Cora Marrett will become acting director of the National Science Foundation when Subra Suresh steps down on 22 March, but several former NSF directors would like to see her considered for the real job.</jats:p>

<jats:p>Bogus signals leave researchers better prepared to analyze real data—but do they go too far?</jats:p>

<jats:p>Eleven beautifully preserved skeletons of early birds provide evidence that having four wings—not two—was the ancestral condition for early birds.</jats:p>

<jats:p>New findings on how HIV-invaded "central memory cells" may control the course of the disease promise to have a profound impact on the field.</jats:p>