Heavens

WASHINGTON -- NASA's Fermi Gamma-ray Space Telescope has made the first unambiguous detection of high-energy gamma-rays from an enigmatic binary system known as Cygnus X-3. The system pairs a hot, massive star with a compact object -- either a neutron star or a black hole -- that blasts twin radio-emitting jets of matter into space at more than half the speed of light.

PASADENA, Calif.— Researchers at the California Institute of Technology (Caltech) suggest that the eccentricity of Saturn's orbit around the sun may be responsible for the unusually uneven distribution of methane and ethane lakes over the northern and southern polar regions of the planet's largest moon, Titan. On Earth, similar "astronomical forcing" of climate drives ice-age cycles.

A paper describing the theory appears in the November 29th advance online edition of Nature Geoscience.

Typhoon Nida is in a favorable environment that has enabled it to intensify faster and stronger than previously forecast, and has now exploded into a Super typhoon. NASA's Aqua satellite passed over Nida and captured a visible image of the storm revealing a clear eye, which indicates a strong typhoon.

Typhoon Nida is in a favorable environment that has enabled it to intensify faster and stronger than previously forecast, and has now exploded into a Super typhoon. NASA's Aqua satellite passed over Nida and captured a visible image of the storm revealing a clear eye, which indicates a strong typhoon.

"The history of the Milky Way is encoded in its oldest fragments, globular clusters and other systems of stars that have witnessed the entire evolution of our galaxy," says Francesco Ferraro, lead author of a paper appearing in this week's issue of the journal Nature. "Our new study opens a new window on yet another piece of our galactic past."

An innovative treatment for HIV patients developed by McGill University Health Centre researchers has passed its first clinical trial with flying colours. The new approach is an immunotherapy customized for each individual patient, and was developed by Dr. J-P. Routy from the Research Institute of the MUHC in collaboration with Dr. R. Sékaly from the Université de Montréal. "This is a vaccine made for the individual patient – an "haute couture" therapy, instead of an off-the-rack treatment" said Dr Routy.

New research at the University of Leicester has identified scores of Sicilian temples built to face the rising Sun, shedding light on the practices of the Ancient Greeks.

Dr Alun Salt, an astronomy technician from the Centre for Interdisciplinary Science at the University of Leicester, found that out of all the temples he surveyed in Sicily, all but three faced the rising sun.

The findings have been published on line in the journal PLoS ONE.

The first large black holes in the universe likely formed and grew deep inside gigantic, starlike cocoons that smothered their powerful x-ray radiation and prevented surrounding gases from being blown away, says a new study led by the University of Colorado at Boulder.

eHealth—the organisation and delivery of health services and information using information technology (IT) systems—is playing an increasingly important role in shaping health care systems. This week PLoS Medicine publishes the third in a series of articles evaluating eHealth. Richard Lilford and colleagues consider the evaluation of health IT systems as they are employed following pre-implementation testing.

DeKalb, IL – New research adds to the growing body of evidence suggesting the Red Planet once had an ocean.

In a new study, scientists from Northern Illinois University and the Lunar and Planetary Institute in Houston used an innovative computer program to produce a new and more detailed global map of the valley networks on Mars. The findings indicate the networks are more than twice as extensive (2.3 times longer in total length) as had been previously depicted in the only other planet-wide map of the valleys.

Researchers from the University of California, San Diego recently offered the sharpest-yet picture of how core biochemical pathways in skeletal muscle cells and fat cells are altered in people who suffer from insulin resistance—a primary defect in type 2 diabetes and obesity. Taking a systems biology approach, the bioengineers and medical researchers also determined how a common class of drugs for treating insulin resistance—TZDs—alter these same core pathways.

Centaurus A (NGC 5128) is the nearest giant, elliptical galaxy, at a distance of about 11 million light-years. One of the most studied objects in the southern sky, by 1847 the unique appearance of this galaxy had already caught the attention of the famous British astronomer John Herschel, who catalogued the southern skies and made a comprehensive list of nebulae.

The MIRAS instrument on ESA's SMOS satellite, launched earlier this month, has been switched on and is operating normally. MIRAS will map soil moisture and ocean salinity to improve our understanding of the role these two key variables play in regulating Earth's water cycle.

Eating disorders (ED) patients display a high prevalence of gastrointestinal symptoms and functional gastrointestinal disorders such as irritable bowel syndrome. These symptoms may interfere with their nutritional management. Ingestion of fructose-sorbitol (F-S) is an established means of gastrointestinal symptom provocation in irritable bowel syndrome patients. Surprisingly, although ED patients are known to consume "diet" products containing fructose and sorbitol, their gastrointestinal symptom responses to F-S provocation have not been studied.

Anja has continued to weaken over the last 24 hours, and NASA's QuikScat satellite has confirmed that the once mighty Category 4 Cyclone is now a tropical storm in the southern Indian Ocean. Two instruments on NASA's Aqua satellite have also helped forecasters determine Anja's location and change of shape.