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Global spam levels have dropped to their lowest point in three years, and now make up just 70.5 percent of all emails, according to Symantec's new Intelligence Report .

Launch $1-billion-worth of spare parts to the International Space Station, and you can keep Earth's orbital outpost going for another decade.

SAN FRANCISCO The public at times questions scientific results produced by government agencies, thinking that the findings may be meant to support particular political policies or positions or to deflect criticism of those policies. Jane Lubchenco, the administrator of the National Oceanic and Atmospheric Administration (NOAA) released a formal scientific integrity policy yesterday that is intended to combat that cynicism

The English language is not especially kind to rats. We say we "smell a rat" when something doesn't feel right, refer to stressful competition as the "rat race," and scorn traitors who "rat on" friends

Manhattan's midtown streets are arranged in a user-friendly grid. In Paris 20 administrative districts, or arrondissements, form a clockwise spiral around the Seine.

By Adam Marcus of Nature magazine A long-running question about how the largest species of birds achieve erect penises seems to have been settled.

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In my Scientific American column this month, I wrote about the dawn of augmented-reality software: phone apps that overlay informational graphics on a live video view of the world. As you hold the phone in front of you, these apps can show you what crimes were committed near the spot where you’re standing, which subway lines are under your feet, what apartments are for sale in the building in front of you, and so on.

Everybody’s amazed by touch-screen phones. They’re so thin, so powerful, so beautiful! [More]

It seems obvious to me that I have free will . When I have just made a decision, say, to go to a concert, I feel that I could have chosen to do something else. Yet many philosophers say this instinct is wrong

Start-up founders don't just wake up one day and decide to launch something entirely different. It's a gradual--and more grueling--process.

Gina Bianchini stepped down as CEO of Ning in 2010.

Skimlinks founder and CEO Alicia Navarro explains how she uses the Web-based hiring service called Resumator. My company sells a conten t monetization platform for online publishers.

DURBAN, South Africa--By 2020, human activity could produce some 55 billion metric tons of greenhouse gases per year, up from roughly 36 billion metric tons per year currently. All the accumulating gas is enough to raise the global average temperatures by more than 3 degrees Celsius by century's end--more than triple the amount of warming that has already occurred. Emission reductions pledged under the Cancun Agreements , which cover some 85 percent of all national greenhouse gas emissions in the world, are meant to slow that warming.