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See the Moon and Mars Before Sunrise on Wednesday Read More » Controversial T. Rex Soft Tissue Find Finally Explained The controversial discovery of 68-million-year-old soft tissue from the bones of a Tyrannosaurus rex finally has a physical explanation. The research, headed by Mary Schweitzer, a molecular paleontologist at North Carolina State University, explains how proteins — and possibly even DNA — can survive millennia. Schweitzer and her colleagues first raised this question in 2005, when they found the seemingly impossible: soft tissue preserved inside the leg of an adolescent T. rex unearthed in Montana. The find was also controversial, because scientists had thought proteins that make up soft tissue should degrade in less than 1 million years in the best of conditions. Read More »2009 Swine-Flu Death Toll 10 Times Higher Than Thought The swine-flu pandemic of 2009 may have killed up to 203,000 people worldwide—10 times higher than the first estimates based on the number of cases confirmed by lab tests, according to a new analysis by an international group of scientists. Looking only at deaths from pneumonia that may have been caused by the flu, they found that Mexico, Argentina and Brazil had the highest death rates from the pandemic in the world. The new estimates are in line with a previous study published last year that used a different statistical strategy to evaluate the impact of the pandemic caused by the H1N1 virus. However, that study, which was done before countries' data on overall death rates in 2009 had become available, found that the majority of deaths occurred in Africa and Southeast Asia. Read More »Amur Leopard Cubs Spotted on Critter Cam in China Read More » 23andMe: What's Really Wrong with Personal Genetic Tests A major shortcoming of the genetic tests offered by the Google-backed company 23andMe is not necessarily their accuracy, but rather the limited information they use to evaluate a person's lifetime risk of complex diseases, experts say. Recently, the Food and Drug Administration sent a letter to 23andMe telling the company to stop marketing its DNA testing kits, because the kits require FDA approval, which the company had not obtained. The letter emphasizes the need for 23andMe to prove that their tests are accurate. "FDA is concerned about the public health consequences of inaccurate results from the [Personal Genome Service] device; Read More »Amazing Ice Circle Appears On River
White Wine and Beer Important Sources of Arsenic White wine, beer and Brussels sprouts can be major sources of the toxic metal arsenic in people's diets, according to a new study. Of the 120 foods the researchers looked at, four turned out to significantly raise people's arsenic levels: beer, white wine (and to a lesser extent, red wine), Brussels sprouts and dark-meat fish such as salmon, tuna and sardines, according to the study, published last week (Nov. 16) in the Nutrition Journal. The results suggest that diet can be an important source of people's arsenic exposure over the long term, regardless of arsenic concentrations in their drinking water, the researchers said. The Environmental Protection Agency (EPA) limits the arsenic in drinking water to 10 micrograms per litter for drinking water, but there are few limits set for foods. Read More »Should You Eat Breakfast on Thanksgiving? On Thanksgiving, people may forgo breakfast or lunch to save room for a feast in the evening. "It's a big mistake to fast before a big meal at a party, or at Thanksgiving dinner," said Katherine Tallmadge, a registered dietitian and op-ed contributor to LiveScience. When people skip meals, they end up feeling so hungry by dinnertime that they overeat, Tallmadge said. To avoid this scenario, Tallmadge recommends eating a regular breakfast and lunch on Thanksgiving, at the same time you normally would eat these meals. Read More »How Science Can Help You Cook a Better Thanksgiving Feast Read More » Comet ISON Nears Sun for Thanksgiving Encounter in NASA Video
'Warriors 4 Wireless' Program Helps Vets Find Tech Industry Jobs Read More » New Housecat-Size Feline Species Discovered Read More » Comet may be visible from Earth if it survives sun's heat, gravity A comet that left the outer edge of the solar system more than 5.5 million years ago will pass close by the sun on Thursday, becoming visible in Earth's skies in the next week or two - if it survives. "There are three possibilities when this comet rounds the sun," Donald Yeomans, manager of NASA's Near-Earth Object Program Office at the Jet Propulsion Laboratory in Pasadena, Calif., said in an interview posted on NASA's website. The second possibility is that the sun's gravity could rip the comet apart, creating several big chunks. The third option: If the comet is very weak, it could break up into a cloud of dust and be a complete bust for viewing. Read More »Rare diplodocus dinosaur sells for $650,000 at British auction Read More » | ||||||
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Wednesday, November 27, 2013
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