Technology
Social Climber: Google Challenges Facebook for Social Networking Supremacy--Again
Google throws its hat into the social-networking ring, this time with a smoother user interface and a focus on mobile gadgets
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The Sciences
Flake Effect: Airplanes Can Trigger Snowfall around Airports
Planes lifting off through a specific kind of cloud cover can inadvertently increase snowfall below
Space & Physics
Brilliant, but Distant: Most Far-Flung Known Quasar Offers Glimpse into Early Universe
A gargantuan black hole has been spotted voraciously devouring material just 770 million years after the big bang
Mind & Brain
Legacy of Mental Health Problems from Iraq and Afghanistan Wars Will Be Long-Lived
Service members returning from combat present a long-term treatment challenge
Technology
Is Karzai's Accusation That Coalition Forces Are Polluting Afghanistan with Nuclear Material Accurate or an Over-Reaction?
Afghan President Hamid Karzai's recent comment that U.S. and NATO-led forces use weapons with "nuclear components" may be a reference to depleted-uranium munitions, whose health impact is still being studied...
Environment
Fukushima Meltdown Mitigation Aims to Prevent Radioactive Flood
Three months after its meltdown, the stricken nuclear power plant continues to struggle to cool its nuclear fuel--and cope with growing amounts of radioactive cooling water
Space & Physics
Turf and Surf: Salty Plumes Point to Underground Ocean inside Saturn's Moon Enceladus
The Cassini spacecraft plunged through watery plumes shooting out of Enceladus and got a taste of what is inside the icy moon
Technology
High Wired: Does Addictive Internet Use Restructure the Brain?
Brain scans hint excessive time online is tied to stark physical changes in the brain
Space & Physics
The Hole Picture: Growth of Black Holes and Galaxies Linked from an Early Age
By one billion years after the big bang, galaxies and their resident black holes were already growing in tandem
Technology
Lemonade without the Lemons: New Search Engine Looks for Uplifting News
Semantic search technology aimed at a positive slant advances with a system that can spot optimism in news articles
Biology
Beyond Condoms: The Long Quest for a Better Male Contraceptive
For decades new, reliable contraceptives for men have seemed imminent. Why isn't there one available yet?
Technology
The Fog of Cyberwar: What Are the Rules of Engagement?
Countries are beginning to develop cyberwarfare policies to protect their national interests, but defending oneself in the borderless Internet will prove problematic
The Sciences
Green Fluorescent Protein Makes for Living Lasers
A single mammalian cell expressing a mutant green fluorescent protein is the first living object to be used as a laser
Technology
Seeking Address: Why Cyber Attacks Are So Difficult to Trace Back to Hackers
Sony, Google, RSA and now Citigroup are just some of the prominent victims of cyber attacks as defenses at large organizations prove porous and attackers elude detection
Mind & Brain
Why'd He Have to Go and Cry? Weiner's Tears May Have Generated Contempt
People do not always respond kindly to crying, and Rep. Anthony Weiner's tearful confession may be one of those occasions
Evolution
Rings and Worms Tell the Tale of a Shipwreck Found at Ground Zero [Slide Show]
Researchers were stunned to find an 18th-century ship that had been unearthed by construction workers at the World Trade Center where the Twin Towers once stood. With great care they followed clues in the well-preserved wood to trace the craft's history to the era of the American Revolution...
Mind & Brain
Autism's Tangled Genetics Full of Rare and Varied Mutations
Several new studies highlight the complexity of autism's genetic roots, revealing why it strikes boys more than girls and offering clues for possible new treatments
Space & Physics
Shattered Expectations: Ultrabright Supernovae Defy Explanation
A rare, superluminous kind of stellar explosion does not fit into the usual supernova categories
Technology
Computer Crash Test: Will Your Internet Access Come to a Screeching Halt on June 8?
A 24-hour evaluation will determine whether millions of people worldwide can connect to the new 128-digit Internet protocol address system
Space & Physics
Mass Arrest: Jupiter's Early Migration Could Explain Mars's Small Size
The wandering orbit of Jupiter at the dawn of the solar system may have had wide-ranging effects
