Heavens

Troy, N.Y. – A new look at the early solar system introduces an alternative to a long-taught, but largely discredited, theory that seeks to explain how biomolecules were once able to form inside of asteroids. In place of the outdated theory, researchers at Rensselaer Polytechnic Institute propose a new theory – based on a richer, more accurate image of magnetic fields and solar winds in the early solar system, and a mechanism known as multi-fluid magneto-hydrodynamics – to explain the ancient heating of the asteroid belt.

Melting sea ice in the Arctic may be leading, indirectly, to fewer caribou calf births and higher calf mortality in Greenland, according to scientists at Penn State University. Eric Post, a Penn State University professor of biology, and Jeffrey Kerby, a Penn State graduate student, have linked the melting of Arctic sea ice with changes in the timing of plant growth on land, which in turn is associated with lower production of calves by caribou in the area. The results of the study will be published in the journal Nature Communications on 1 October 2013.

Efforts to limit the reach of the Voting Rights Act of 1965 (VRA), the legislation that banned discrimination in voting, could negatively impact black political representation, according to a new study from researchers at Rice University, the University of Wisconsin-Milwaukee and Ohio University.

New research from the Children of the 90s study at the University of Bristol suggests that fish accounts for only seven per cent of mercury levels in the human body. In an analysis of 103 food and drink items consumed by 4,484 women during pregnancy, researchers found that the 103 items together accounted for less than 17 per cent of total mercury levels in the body.

NASA's Cassini spacecraft has detected propylene, a chemical used to make food-storage containers, car bumpers and other consumer products, on Saturn's moon Titan.

This is the first definitive detection of the plastic ingredient on any moon or planet, other than Earth.

A small amount of propylene was identified in Titan's lower atmosphere by Cassini's Composite Infrared Spectrometer (CIRS). This instrument measures the infrared light, or heat radiation, emitted from Saturn and its moons in much the same way our hands feel the warmth of a fire.

When faced with uncertain situations, people are less able to make decisions as they age, according to a new study by researchers at Yale School of Medicine. Published in the Sept. 30 Proceedings of the National Academy of Sciences, the study also found that older people are more risk-averse than their midlife counterparts when choosing between possible gains, but more risk-seeking when choosing between losses.

Tropical Depression 11 formed in the central Atlantic Ocean and NASA's TRMM satellite passed overhead and gathered information and identified a "hot tower" that indicated it would strengthen. The depression became Tropical Storm Jerry on Sept. 30 at 10:30 a.m. EDT.

The eleventh Atlantic tropical depression formed around 11 p.m. EDT on Saturday, Sept. 28, about 960 miles/1,540 km east-northeast of the Leeward Islands and was moving north at 9 mph.

WASHINGTON, Sept. 30, 2013 – A string of fiber-optic sensors running along a 36-km stretch of high-speed commuter railroad lines connecting Hong Kong to mainland China has taken more than 10 million measurements over the past few years in a demonstration that the system can help safeguard commuter trains and freight cars against accidents. Attuned to the contact between trains and tracks, the sensors can detect potential problems like excessive vibrations, mechanical defects or speed and temperature anomalies.

Tropical Depression Sepat formed in the northwestern Pacific Ocean and NASA's Aqua satellite captured infrared data on the storm, revealing some strong thunderstorms.

The twenty-first and twenty-second tropical depressions of the northwestern Pacific Ocean formed on Sept. 30 and while one is headed to the northeast, the other is headed to the northwest.

Tropical Depression 21W also known as Sepat is forecast to turn to the northeast and parallel the coast of eastern Japan, while staying far off-shore. Tropical Depression 22W, however, is taking a different route and heading to the northwest.

Chestnut Hill, MA (September 30, 2013) - It's a long held belief that parental and administrative support helps breed academic success; now there's data to back that up. A new study released today by the IEA and the TIMSS and PIRLS International Study Center at Boston College examines what makes up "cultural educational excellence" while quantifying the strengths of best practices at school, and at home.

NASA's Terra satellite passed over Typhoon Wutip on its approach to a landfall in Vietnam and a visible image revealed its 10-mile-wide eye, and large extent. Wutip was making landfall near Dong Hoi Vietnam around 0900 UTC/5 a.m. EDT.

A black hole. A simple and clear concept, at least according to the hypothesis by Roy Kerr, who in 1963 proposed a "clean" black hole model, which is the current theoretical paradigm. From theory to reality things may be quite different. According to a new research carried out by a group of scientists that includes Thomas Sotiriou, a physicist of the International School for Advanced Studies (SISSA) of Trieste, black holes may be much "dirtier" than what Kerr believed.

Adults who move to farming areas where they experience a wider range of environmental exposures than in cities may reduce the symptoms of their hypersensitivities and allergies considerably. This is the result of new research from Aarhus University.

This pioneering result was recently published online in the esteemed periodical, The Journal of Allergy and Clinical Immunology in an article entitled "Become a farmer and avoid new allergic sensitization: Adult farming exposures protect against new-onset atopic sensitization".

Three months after the flight of the solar observatory Sunrise – carried aloft by a NASA scientific balloon in early June 2013 -- scientists from the Max Planck Institute for Solar System Research in Germany have presented unique insights into a layer on the sun called the chromosphere. Sunrise provided the highest-resolution images to date in ultraviolet light of this thin corrugated layer, which lies between the sun's visible surface and the sun's outer atmosphere, the corona.