Latest from Science News: As many as nine new dwarf galaxies found outside Milky Way

Latest from Science News 03/12/2015

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NEWS As many as nine new dwarf galaxies found outside Milky Way BY CHRISTOPHER CROCKETT, MAR 11, 2015 06:04 PM A bevy of newly discovered satellite galaxies around the Milky Way could help astronomers study how galaxies form and the nature of dark matter. Read More Read More»

NEWS Ultrasound attacks Alzheimer’s plaques BY ASHLEY YEAGER, MAR 11, 2015 02:13 PM A new study offers clues to how ultrasound may work as a treatment for Alzheimer’s disease. Read More Read More»

NEWS IN BRIEF How arthropods got their legs BY KATE BAGGALEY, MAR 11, 2015 02:00 PM New fossils reveal how arthropods evolved branching limbs. Read More Read More»

More Headlines from Science News LETTERS TO THE EDITOR Concerns about drones, how to hunt exoplanets and more reader feedback Readers discuss the potential impacts of human-made fliers and muse about the advantages a poker-playing computer program has over human opponents. Read More BY SCIENCE NEWS STAFF, MAR 11, 2015 12:15 PM EDITOR'S NOTE In era of collaboration, individual initiative can still pay off A risky venture to study cosmic ray particles offers no guarantee of success, but it may help answer two of the biggest questions in physics. Read More BY EVA EMERSON, MAR 11, 2015 11:45 AM NEWS IN BRIEF Teens have higher anaphylaxis risk than younger kids Adolescents may be more apt to experience an extreme allergic reaction than younger children, researchers report. Read More BY NATHAN SEPPA, MAR 11, 2015 08:00 AM NEWS Electrical zap of cells shapes growing brains The electric charge across cell membranes directs many aspects of brain development, and changing it can fix certain brain birth defects. Read More BY KATE BAGGALEY, MAR 10, 2015 05:01 PM FEATURE Mapping aggression circuits in the brain Using optogenetics and other techniques, scientists are tracing connections to and from the brain’s aggression command center. Read More BY SUSAN GAIDOS, MAR 10, 2015 04:41 PM NEWS IN BRIEF Experimental herpes vaccine works in mice An experimental herpes vaccine works in animal tests by using an approach starkly different from that used in previous vaccine development. Read More BY NATHAN SEPPA, MAR 10, 2015 03:04 PM REVIEWS & PREVIEWS Cage free isn’t good enough for livestock, ‘The Modern Savage’ argues Even on a small farm, life can be brutal for animals, historian and animal rights advocate says in new book. Read More BY BETH MOLE, MAR 10, 2015 10:00 AM