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<jats:p> On page <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/cgi/content/abstract/327/5965/571">571</jats:ext-link> of this week's issue of <jats:italic>Science</jats:italic> , paleontologists unveil <jats:italic>Haplocheirus sollers</jats:italic> , a new genus of alvarezsauroid—a group of dinosaurs once thought to be flightless birds. The nearly complete skeleton is about 15 million years older than the earliest known bird, <jats:italic>Archaeopteryx</jats:italic> . </jats:p>

<jats:p> Since the 12 January earthquake, GHESKIO (the Haitian Group for the Study of Kaposi's Sarcoma and Opportunistic Infections) has converted itself into a hospital with a surgical unit and a makeshift outdoor home for thousands of refugees. On 21 January, GHESKIO leader Jean "Bill" Pape responded to questions from <jats:italic>Science</jats:italic> in an e-mail. </jats:p>

<jats:p>Intergovernmental Panel on Climate Change (IPCC) head Rajendra Kumar Pachauri has recently come under attack in the U.K. press for his lucrative stints as an adviser to companies including the Toyota Motor Corp. and Deutsche Bank. Earlier this week, Pachauri defended IPCC's work and shot back at critics who want to see him ousted as panel chair.</jats:p>

<jats:p>The price of the heavier isotope of helium, helium-4, is artificially low and encouraging waste of a substance indispensable for numerous scientific and technological applications, says a U.S. National Research Council report released last week.</jats:p>

<jats:p>As this year's winter spawning season draws to an end, biologists who've been surveying the subspecies of coho salmon that lives along the central California coast are reporting dismal numbers. A federal species recovery plan to be released next month has morphed into a species survival plan.</jats:p>

<jats:p> <jats:italic>Science</jats:italic> NOW reported this week that colliding particles <jats:italic>can</jats:italic> make black holes, bats and whales share a sonar protein, the Cold War split birds, too, and the first flyers were gliders, not runners, among other stories. </jats:p>

<jats:p> In a <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/cgi/content/abstract/science.1185634">study</jats:ext-link> published online this week by <jats:italic>Science</jats:italic> , researchers at the National Ignition Facility, a huge laser for nuclear fusion experiments at Lawrence Livermore National Laboratory, describe their first experiments using all 192 of the facility's beams on test targets empty of fuel. </jats:p>

<jats:p>A study published this week offers a possible explanation for why jovian moon Ganymede evolved so much more than Callisto did: Ganymede suffered a far worse beating 3.9 billion years ago when a rain of comets and asteroids battered much of the solar system.</jats:p>