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Invisibility appears to be the next possible advance in the use of Terahertz radiation in medicine, security, and communications.

"Celebrating" the killing of any member of our species--for example, by chanting USA! USA! and singing The Star Spangled Banner outside the White House or jubilantly demonstrating in the streets--is a violation of human dignity. Regardless of the perceived degree of "good" or "evil" in any of us, we are all, each of us, human. To celebrate the killing of a life, any life, is a failure to honor life's inherent sanctity.

Empowering expectant and new mothers to make healthy decisions by harnessing the power of mobile technology

A full hour before the formal announcement of Bin-Laden's death, Keith Urbahn posted his speculation on the emergency presidential address. Little did he know that this Tweet would trigger an avalanche of reactions, Retweets and conversations that would beat mainstream media as well as the White House announcement. Keith Urbahn wasn't the first to speculate Bin Laden's death, but he was the one who gained the most trust from the network. Why did this happen?

Last October, a containment dam belonging to a Hungarian alumina manufacturer collapsed after heavy rains, releasing 200 million gallons of caustic sludge. Eight people died in the flood of lye-like red mud, which overwhelmed nearby towns and created an environmental catastrophe.

The health implications of polluting the environment weigh increasingly on our public consciousness, and pharmaceutical wastes continue to be a main culprit. Now a Tel Aviv University researcher says that current testing for these dangerous contaminants isn't going far enough.

After many fits and starts, diesel cars are gaining traction in the US market, fueled largely by German carmakers including Volkswagen, which opened a plant in May in Tennessee.

An oil pipeline in northwestern US state Montana has ruptured and spilled crude oil into the Yellowstone River, a key tourist attraction in the region that runs through a famed national park, the pipeline operator acknowledged late Saturday.

The health of the world's oceans is declining much faster than originally thought - under siege from pollution, overfishing and other man-made problems all at once - scientists say in a new report.

That axiom of sustainability -- "recycle and reuse" -- could help ease concerns about a reliable supply of substances, indispensible for a modern technological society, that are produced almost exclusively in the Peoples' Republic of China. That's the conclusion of a study on these so-called "rare earth" elements in the ACS journal Environmental Science & Technology.

Is it possible that your child could live to see 150 years of age? What about your grandchild living to see their 1000th birthday? According to a British biomedical gerontologist and chief scientist of the Strategies for Engineered Negligible Senescence (SENS) Foundation Aubrey De Grey, that is a definite possibility.

Some areas of the southern United States are suffering from the longest dry spell since 1887 and a new Baylor University study shows that could prove problematic for aquatic organisms.

alf the elephants from West and Central African savannahs have vanished in the past 40 years, scientists report in PLoS One.

Few things in this world can be more annoying than running out of battery. It seems like your cell phone has made the application of Murphy's Law its raison d'etre. It dies right before you are expecting that important call from a client. It dies the day that your kids are sick. It always seems to die when you have just left the spot that had an easily accessible outlet.

In his talk on Deep Optimism, Ridley presented a coherent, integrated, and astoundingly thorough case for progress in all degrees. For one easy-to-visual metric, Ridley showed how it takes less time each year to work for a constant benefit, say on hour of artificial light at night. It 1800 it took six hours of typical labor to purchase an hour's worth of candles, so few working people did. In 1880 it took fifteen minutes of work to purchase an hour's worth of kerosene for a lamp. In 1950 it took eight seconds of work to pay for an hour's electricity for a light bulb. In 1997, it took only half a second -- a blink -- of work to light a compact fluorescent bulb for an hour.

Ranchers in the central Great Plains may be using some of their winter downtime in the future to rehearse the upcoming production season, all from the warmth of their homes, according to U.S. Department of Agriculture (USDA) soil scientists.

Keeping moorland soils wet could prove vital in conserving some of Britain's important upland breeding bird species - by protecting the humble daddy longlegs, according to new research.

Scientists studying the fossils of tiny ocean-dwelling plankton, called foraminifera, have uncovered another piece in the puzzle of why species evolve or become extinct.