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Is Bird Flu Waiting to Explode?By concocting bird flu viruses that could potentially spread easily among humans, researchers have ignited a debate about the need for safety versus open inquiry
HIV Researcher Probes Vulnerabilities in the Virus for Clues to a VaccineThumbi Ndung'u has moved from Africa to Massachusetts and back in a quest to halt the AIDS epidemic
A Countdown to a Digital Simulation of Every Last Neuron in the Human BrainBuilding a vast digital simulation of the brain could transform neuroscience and medicine and reveal new ways of making more powerful computers
Hermit Crabs Trade Up by Exchanging Shells in QueueLike people, hermit crabs and other animals trade up by treasuring what others leave behind
The Right Way to Get It WrongMost errors are quickly forgotten. Others end up remaking the face of science
Antimatter-Powered SupernovaeThe largest stars die in explosions more powerful than anyone thought possible—some triggered in part by the production of antimatter
Orchids Need Bees More Than Bees Need ThemOrchid pollinators are surprisingly promiscuous about the plants they like
The Problems with ITER and the Fading Dream of Fusion EnergyOn the road to unlimited energy, the world's most complex science experiment encounters a few potholes
How Bacteria in Our Bodies Protect Our HealthResearchers who study the friendly bacteria that live inside all of us are starting to sort out who is in charge—microbes or people?
Dial-a-Flood: A New Smart Phone App Helps Residents and Researchers Predict Storm Surges
Treating Baldness is "Not Like Growing Grass"
A New Science Kit Lets Teens Watch Neurons as They Fire
Old and New Neurons Trade Roles to Aid Memory
Happy Birthday, Electron
What Is It?
Volcanic Tremors May Help Predict Massive Eruptions
Traveling Salesman: A Seemingly Unsolvable Problem Offers a Glimpse of the Limits of Computation
Van Gogh's Sunflowers Were Genetic Mutants
Primeval Precipitation: What Fossilized Rain Reveals About Early Earth
Parasite Insights: Using Lice to Map Socialization
New Evidence Shows that Mercury, the Planet Closest to the Sun, Is Icy
Motherhood, Not Discrimination, May Account for the Gender Gap in Tenure-Track Science Jobs
Microbial Mules: Engineering Bacteria to Transport Nanoparticles and Drugs
How Close Is Iran to Exploding Its First Nuclear Bomb?
From the Editor
Your Microbiome Community Brings New Meaning to "We the People"
Which Nations Consume the Most Water?
Letters to the Editors
Readers respond to "A Man-made Contagion" and Other Articles
Recommended: Tubes: A Journey to the Center of the Internet
Evolution Explains Why Politics Is So Tribal
Down with Double Data Fees!
The Science of Health
Would You Like a Side of Dirt with That?
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