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Revising Earth's Early History (View Original Story)
Source: Posted: 12-30-2005 at 11:06:44
| Using refined techniques to study rocks, researchers at the Carnegie Institution's Department of Terrestrial Magnetism (DTM) found that Earth's mantle separated into chemically distinct layers faster and earlier than previously believed -- within 30 million years of the solar system's formation, instead of occurring gradually over more than 4 billion years, as the standard model suggests. The new work was recognized by Science magazine, in its December 23 issue, as one of the science breakthroughs for 2005. |
Ultraviolet B Light Exposure Associated With Increased Risk Of Skin Cancer (View Original Story)
Source: Posted: 12-30-2005 at 11:06:44
| A decreased ability to repair chromosomal damage caused by exposure to ultraviolet B (UV-B) radiation in test tubes may be associated with an increased risk of the common skin cancers basal cell carcinoma and squamous cell carcinoma, but not of melanoma, according to a study in the December 21 issue of the Journal of the National Cancer Institute. |
Researchers Show How Air Pollution Can Cause Heart Disease (View Original Story)
Source: Posted: 12-30-2005 at 11:06:44
| New York University School of Medicine researchers provide some of the most compelling evidence yet that long-term exposure to air pollution--even at levels within federal standards--causes heart disease. Previous studies have linked air pollution to cardiovascular disease but until now it was poorly understood how pollution damaged the body's blood vessels. |
First Galileo Demonstrator Reaches Orbit, Paving Way For Europe's New Global Navigation ... (View Original Story)
Source: Posted: 12-30-2005 at 11:06:44
| The first Galileo demonstrator is in orbit, marking the very first step to full operability of Europe's new global navigation satellite system, under a partnership between ESA and the European Commission (EC). Giove A, the first Galileo in-orbit validation element, was launched today from Baikonur, Kazakhstan, atop a Soyuz-Fregat vehicle operated by Starsem. |
Tiny Pikas Seem To Be On March Toward Extinction In Great Basin; Climate Change, Human Factors ... (View Original Story)
Source: Posted: 12-30-2005 at 11:06:44
| The tiny rabbit-like pika, an animal species considered to be one of the best canaries in a coal mine for detecting global warming in the western United States, appears to be veering toward the brink of extinction in the Great Basin. |
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