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Galactic 'rain' explains why some galaxies are better at creating stars

Some of the galaxies in our universe are veritable star nurseries. For example, our own Milky Way produces, on average, at least one new star every year. Others went barren years ago, now producing few if any new stars. Why that happens is a question that has dogged astronomers for years. Show More Summary

Genome replication may hold clues to cancer evolution

The more copies of a genome a cell holds, the more adaptable those cells are, scientists have discovered. This may have implications for cancer's evolution and adaptation.

Deadly frog fungus dates back to 1880s, studies find

A pair of studies show that the deadly fungus Batrachochytrium dendrobatidis, responsible for the extinction of more than 200 amphibian species worldwide, has coexisted harmlessly with animals in Illinois and Korea for more than a century. Show More Summary

Traditional beliefs promote sustainability in West Africa

Sacred forests and traditional beliefs are shaping sustainable farming practices in communities in West Africa, according to new research. Scientists carried out a unique 18-month study in Liberia, examining the traditional agriculture of the Loma people where farmers do not use industrial farming practices or artificial fertilizers. Show More Summary

Using fruit flies to understand how we sense hot and cold

Innately, we pull our hand away when we touch a hot pan on the stove, but little is known about how our brain processes temperature information. Scientists now have discovered how a fruit fly's brain represents temperature, mapping it...Show More Summary

Direct evidence that drought-weakened Amazonian forests 'inhale less carbon'

Direct evidence of the rate at which individual trees in the Amazonian basin 'inhale' carbon from the atmosphere during severe drought has been provided by an international research team. Researchers found that while the rate of photosynthesis...Show More Summary

Strong genetic risk factor for MS discovered in family of five affected siblings

A genetic variation has been discovered that, in women, significantly increases their risk of developing multiple sclerosis, scientists report. The variant occurs almost twice as often among women with MS as in women without the disease, making it "one of the strongest genetic risk factors for MS discovered to date,” said the study's senior author.

The Higgs Particle --"It Can Disintegrate Into Dark Matter"

The ‘Standard Model’ of particle physics successfully describes the smallest constituents of matter. But the model has its limitations – it does not explain the dark matter of the universe. Christoffer Petersson, a research scientist at Chalmers University of Technology,...

The Weird Quantum Behavior of Light, Captured in a Lab

Subatomic particles—photons, let’s say, or electrons—sometimes also act like waves. And waves sometimes act like subatomic particles. It’s weird. It’s also one of the fundamental tenets of quantum physics…and now, for the first time, scientists have taken a picture of that duality at work. Show More Summary

Why isn't the universe as bright as it should be?

A handful of new stars are born each year in the Milky Way, while many more blink on across the universe. But astronomers have observed that galaxies should be churning out millions more stars, based on the amount of interstellar gas available. This study explains why galaxies don't churn out as many stars as they should.

Infant gut bacteria and food sensitization: Associations in the first year of life

New light has been shed on changes in intestinal bacteria of infants that can predict future development of food allergies or asthma. The research reveals that infants with a fewer number of different bacteria in their gut at three months of age are more likely to become sensitized to foods such as milk, egg or peanut by the time they are one year old.

Discovery of 2.8 million year old jaw sheds light on early Homo

For decades, scientists have been searching for African fossils documenting the earliest phases of the Homo lineage, but specimens recovered from the critical time interval between 3 and 2.5 million years ago have been frustratingly few and often poorly preserved. Show More Summary

Treatment guidelines for pediatric Hodgkin lymphoma outlined

A guideline has been issued that outlines the use of 3-D computed tomography (CT)-based radiation therapy planning and volumetric image guidance to more effectively treat pediatric Hodgkin lymphoma and to reduce the radiation dose to normal tissue, thus decreasing the risk of late side effects.

Time management: Why we feel busier when close to reaching a goal

Is there any worse time to be interrupted than right now? Regardless of what we're doing or the nature of the interruption, we often feel as if we have no time to spare at the moment. According to a new study, consumers feel busier when they are close to finishing a task or reaching a goal.

Older, white males with advanced bladder cancer at high risk for suicide

Older, single white males with advanced bladder cancer have the highest suicide risk among those with other cancers of the male genitals and urinary system, researchers report. The review identified suicide in these patients as a public health dilemma that needs physician awareness, particularly in patients who are older, male, and have aggressive disease.

X-ray imaging of a single virus in 3-D

By imaging single viruses injected into the intense beam of an X-ray free-electron laser, researchers have determined the three-dimensional structure of the mimivirus. The technique could be applied to image other pathogenic virusesShow More Summary

Insight into inflammatory bowel disease

The development of Inflammatory Bowel Disease (IBD) may be influenced through a protein in the gut leading to inflammation according to research. "These results provide further evidence to support the regulatory role of epithelial SOCS3 in intestinal health and suggest that the increased expression of SOCS3 observed in IBD may serve to perpetuate inflammation," authors state.

Why Australia Is Killing Koalas

Koalas' numbers on one part of Australia are too big for their own good, and some are starving—so officials have quietly been culling their population, Australia's ABC News reports. "We have had koalas suffer in that Cape Otway area because of ill health and starvation" amid overpopulation, says environment...

Advancing multiple approaches for characterizing permafrost microbes in a changing climate

To better characterize the microbial activities in the thawing permafrost, scientists have reported on the application of multiple molecular technologies: "omics."

Planet 'reared' by four parent stars

Growing up as a planet with more than one parent star has its challenges. Though the planets in our solar system circle just one star -- our sun -- other more distant planets, called exoplanets, can be reared in families with two or more stars. Show More Summary

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