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Underwater Robots Hear 9 Endangered Whales

Two underwater robots outfitted with equipment to detect whale song heard the calls of nine critically endangered North Atlantic right whales in the Gulf of Maine last month, just east of New...

Samsung Unveils Eight-Core Processor for Mobile Devices

Quad-core chips for mobile devices? Not good enough. At the International Consumer Electronics Show under way in Las Vegas, Samsung has announced an eight-core processor that is designed to conserve battery life. The processor, the Exynos 5 Octa, is actually two quad-core processors mounted in a single package. Four are high-performance cores for processing-intensive tasks like gaming, and the...

Dark energy alternatives to Einstein are running out of room

Research by University of Arizona astronomy professor Rodger Thompson finds that a popular alternative to Albert Einstein's theory for the acceleration of the expansion of the universe does not fit newly obtained data on a fundamental constant, the proton to electron mass ratio.

The supernova that cried wolf

(Phys.org)—Astronomers are announcing today that a massive star, which they have watched repeatedly mimic a supernova since 2009, has finally exploded for real. The report is being presented to the American Astronomical Society meeting in Long Beach, CA, by Dr. Jon Mauerhan of Steward Observatory at the University of Arizona, in collaboration with Dr. Nathan Smith, also of the University of...

Introduce Us to Some Fascinating Young People

Nominations are open for our annual list of 35 innovators under 35. Don’t hold back.Our readers often tell us that they are inspired and intrigued by our annual report on 35 important innovators under the age of 35. What you might not know, however, is that anyone can nominate a candidate. And there’s no rule against nominating yourself. So if you know of someone who is doing brilliant work in...

High fiber diet prevents prostate cancer progression, study shows

The rate of prostate cancer occurrence in Asian cultures is similar to the rate in Western cultures, but in the West, prostate cancer tends to progress, whereas in Asian cultures it does not. Why? A University of Colorado Cancer Center study published in the January 2013 issue of the journal Cancer Prevention Research shows that the answer may be a high-fiber...

Invading species can extinguish native plants despite recent reports to the contrary

Evolutionary biologists have found that, given time, invading exotic plants will likely eliminate native plants growing in the wild despite recent reports to the contrary. A new study reports that recent statements that invasive plants are not problematic are often based on incomplete information, with insufficient time having passed to observe the full effect of invasions on native...

Online message boards provide outlets for mothers' concerns, researcher says

Parenting infants and toddlers can be challenging, and for generations, mothers have turned to other moms for advice. Now, with the availability of the Internet, mothers are consulting each other using modern venues: online message boards. Research indicates online discussion boards provide safe environments for mothers to anonymously express child-rearing concerns and receive support from other...

Engineering alternative fuel with cyanobacteria

Biologists have engineered two strains of cyanobacteria to produce free fatty acids, a precursor to liquid fuels. Micro-algal fuels might be one way to reduce the nation’s dependence on foreign energy. Such fuels would be renewable since they are powered by sunlight. They also could reduce carbon dioxide emissions since they use photosynthesis, and they could create jobs in a new...

New research method to identify brain tumors could enhance neurosurgery

The use of a new brain tumor-targeting contrast agent that differentiates between normal and cancer cells in conjunction with a high-powered microscopy system could potentially lead to a method of more precise neurosurgery for brain tumors, according to research paper. The contrast agent adheres to a molecular marker of medulloblastoma, a form of brain cancer, and can be seen by the optical...