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Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution -- the latest discoveries in astronomy, anthropology, biology, chemistry, climate & environment, computers, engineering, health & medicine, math, physics, psychology, technology, and more -- from the world's leading universities and research organizations.
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Updated: 1 hour 5 min ago

NASA's Juno spacecraft refines its path to Jupiter

2 hours 6 min ago
NASA's solar-powered Juno spacecraft successfully refined its flight path Feb. 1 with the mission's first trajectory correction maneuver. The maneuver is the first of a dozen planned rocket firings that, over the next five years, will keep Juno on course for its rendezvous with Jupiter.
Categories: Technology

Medical debt keeps rising, new report shows

2 hours 24 min ago
A comprehensive new report on health insurance shows the so-called Great Recession caused hundreds of thousands of Californians to lose coverage and acquire medical debt.
Categories: Technology

Discovery predicts patient sensitivity to important drug target in deadly brain cancer

2 hours 24 min ago
A recent discovery enables the prediction of patient sensitivity to proposed drug therapies for glioblastoma – the most common and most aggressive malignant brain tumor in humans.
Categories: Technology

More environmental rules needed for shale gas, says geophysicist

2 hours 24 min ago
In his State of the Union address, President Barack Obama praised the potential of the country's tremendous supply of natural gas buried in shale. But the "Halliburton exclusion" passed by Congress says gas companies don't have to disclose the chemicals used in fracturing fluids. That was a real mistake because it makes the public needlessly paranoid, says a geophysicist.
Categories: Technology

Key finding in stem cell self-renewal

4 hours 38 min ago
Scientists have proposed a mechanism for the control of whether embryonic stem cells continue to proliferate and stay stem cells, or differentiate into adult cells like brain, liver or skin. The work has implications in two areas. In cancer treatment, it is desirable to inhibit cell proliferation.
Categories: Technology

New species of bamboo-feeding plant lice found in Costa Rica

4 hours 39 min ago
Several periods of field work during 2008 have led to the discovery of a new species of bamboo-feeding plant lice in Costa Rica's high-altitude region Cerro de la Muerte. The discovery was made thanks to molecular data analysis of mitochondrial DNA. The collected records have also increased the overall knowledge of plant lice (one of the most dangerous agricultural pests worldwide) from the region with more that 20 percent.
Categories: Technology

Playing RFID tag with sheets of paper

6 hours 36 min ago
Researchers in France have developed a way to deposit a thin aluminum RFID tag onto paper that not only reduces the amount of metal needed for the tag, and so the cost, but could open up RFID tagging to many more systems, even allowing a single printed sheet or flyer to be tagged.
Categories: Technology

Low levels of lipid antibodies increase complications following heart attack

6 hours 36 min ago
Coronary patients with low levels of an immune system antibody called anti-PC, which neutralizes parts of the "bad" cholesterol, run a greater risk of suffering complications following an acute cardiac episode and thus of premature death.
Categories: Technology

East views the world differently to West

6 hours 36 min ago
Cultural differences between the West and East are well documented, but a study shows that concrete differences also exist in how British and Chinese people recognize people and the world around them. Easterners really do look at the world differently to Westerners, according to new research.
Categories: Technology

Strategy shift with age can lead to navigational difficulties

7 hours 39 min ago
A researcher believes studying people's ability to find their way around may help explain why loss of mental capacity occurs with age.
Categories: Technology

Combined approach to global health has benefits

7 hours 39 min ago
A new analysis demonstrates that confronting several diseases at once is a viable way to make the most of thinly stretched donor dollars and national health care budgets, and help save more lives.
Categories: Technology

Engineers weld nanowires with light

7 hours 39 min ago
At the nano level, researchers have discovered a new way to weld together meshes of tiny wires. Their work could lead to exciting new electronics and solar applications. To succeed, they called upon plasmonics.
Categories: Technology

Children hospitalized at alarming rate due to abuse, U.S. study finds

7 hours 39 min ago
In one year alone, over 4,500 children in the United States were hospitalized due to child abuse, and 300 of them died of their injuries, researchers report in a new study.
Categories: Technology

Positive parenting during early childhood may prevent obesity

7 hours 40 min ago
Programs that support parents during their child’s early years hold promise for obesity prevention, according to a new study.
Categories: Technology

Did your surgeons miss something? New system to prevent retained surgical items

7 hours 40 min ago
It may sound like something from a TV medical drama, but the incidence of surgeons leaving something behind in the body is very real at hospitals across the country. But researchers have now created a new system using state-of-the-art technologies to insure that no foreign objects are left behind during surgery.
Categories: Technology

Key to immune cell's 'internal guidance' system discovered

Sun, 2012-02-05 17:38
Researchers have discovered the molecular pathway that enables receptors inside immune cells to find, and flag, fragments of pathogens trying to invade a host. The discovery of the role played by the molecule CD74 could help immunologists investigate treatments that offer better immune responses against cancers, viruses and bacteria, and lead to more efficient vaccines.
Categories: Technology

Early study suggests nanodiamonds safe for implants

Sun, 2012-02-05 17:37
As the number of knee and hip joint replacements grows, nanodiamond coatings could answer problems related to metal surfaces.
Categories: Technology

Genetic variant increases risk of common type stroke

Sun, 2012-02-05 17:37
A genetic variant that increases the risk of a common type of stroke has been identified by scientists. This is one of the few genetic variants to date to be associated with risk of stroke and the discovery opens up new possibilities for treatment.
Categories: Technology

Hearing metaphors activates brain regions involved in sensory experience

Fri, 2012-02-03 19:26
New brain imaging research reveals that a region of the brain important for sensing texture through touch, the parietal operculum, is also activated when someone listens to a sentence with a textural metaphor. The same region is not activated when a similar sentence expressing the meaning of the metaphor is heard.
Categories: Technology

Whole exome sequencing identifies cause of metabolic disease

Fri, 2012-02-03 19:26
Sequencing a patient's entire genome to discover the source of his or her disease is not routine, but geneticists are getting close. A case report shows how researchers can combine a simple blood test with an "executive summary" scan of the genome to diagnose a severe glycosylation disorder.
Categories: Technology