日期：2014-12-09 In 2012 the Mars Science Laboratory landed in the fascinating Gale crater. The Gale crater is of such great interest because of the 5.5 km high mountain of layered materials in the middle. This material tells an intricate story of the history of Mar... 阅读全文>>

日期：2014-12-09 Titan, Saturn's largest moon, is a peculiar place. Unlike any other moon, it has a dense atmosphere. It has rivers and lakes made up of components of natural gas, such as ethane and methane. It also has windswept dunes that are hundreds of yards hig... 阅读全文>>

日期：2014-12-08 Scientists may have solved a long-standing enigma known as the African Humid Period -- an intense increase in cumulative rainfall in parts of Africa that began after a long dry spell following the end of the last ice age and lasting nearly 10,000 ye... 阅读全文>>

日期：2014-12-08 In a new study, published in Science, researchers at Uppsala University demonstrate an association between smoking and loss of the Y chromosome in blood cells. The researchers have previously shown that loss of the Y chromosome is linked to cancer.... 阅读全文>>

日期：2014-12-08 A new article detailing the relationship of two U.S. Supreme Court cases and how they work together to uphold freedom of expression has been published in the Georgia Law Review by William E. Lee, professor of journalism in the University of Georgia... 阅读全文>>

日期：2014-12-08 UNSW Australia's solar researchers have converted over 40% of the sunlight hitting a solar system into electricity, the highest efficiency ever reported. The record efficiency was achieved in outdoor tests in Sydney, before being independently confi... 阅读全文>>

日期：2014-12-08 Unconventional oil and gas (UOG) operations combine directional drilling and hydraulic fracturing, or fracking, to release natural gas from underground rock. Recent discussions have centered on potential air and water pollution from chemicals used i... 阅读全文>>

日期：2014-12-08 As California finally experiences the arrival of a rain-bearing Pineapple Express this week, two climate scientists from the University of Minnesota and Woods Hole Oceanographic Institution have shown that the drought of 2012-2014 has been the worst... 阅读全文>>

日期：2014-12-05 Some flowers could give out a smell that is nine times more fragrant than they currently produce, according to a report. 一份报告显示，全球变暖将导致一些花比现在香9倍。 It says that a temperature increase of between 1C (34F) - 5C (41F) will vastly i... 阅读全文>>

日期：2014-12-04 Researchers at North Carolina State University have for the first time mapped human disease-causing pathogens, dividing the world into a number of regions where similar diseases occur. The findings show that the world can be separated into seven reg... 阅读全文>>

日期：2014-12-04 Koala population distribution may be influenced by eucalyptus leaf toxin and nutrient content, especially in areas with low-quality food options, according to a study published December 3, 2014 in the open-access journal PLOS ONE by Eleanor Stalenbe... 阅读全文>>

日期：2014-12-04 Scientists have developed a way to sniff out tiny amounts of toxic gases -- a whiff of nerve gas, for example, or a hint of a chemical spill -- from up to one kilometer away. The new technology can discriminate one type of gas from another with grea... 阅读全文>>

日期：2014-12-04 Analysis of data from the MATROSHKA experiment, the first comprehensive measurements of long-term exposure of astronauts to cosmic radiation, has now been completed. This experiment, carried out on board and outside of the International Space Statio... 阅读全文>>

日期：2014-12-04 Planets orbiting close to low-mass stars -- easily the most common stars in the universe -- are prime targets in the search for extraterrestrial life. But new research led by an astronomy graduate student at the University of Washington indicates so... 阅读全文>>

日期：2014-12-04 An efficient method to harvest low-grade waste heat as electricity may be possible using reversible ammonia batteries, according to Penn State engineers. The use of waste heat for power production would allow additional electricity generation withou... 阅读全文>>

日期：2014-12-04 Scientists from WCS (Wildlife Conservation Society), the American Museum of Natural History (AMNH), the Environment Society of Oman, and other organizations have made a fascinating discovery in the northern Indian Ocean: humpback whales inhabiting t... 阅读全文>>

日期：2014-12-04 Washington State University researchers have found that it is counter-productive to kill wolves to keep them from preying on livestock. Shooting and trapping lead to more dead sheep and cattle the following year, not fewer. Writing in the journal PL... 阅读全文>>

日期：2014-12-03 A comprehensive, 21-year analysis of the fastest-melting region of Antarctica has found that the melt rate of glaciers there has tripled during the last decade. The glaciers in the Amundsen Sea Embayment in West Antarctica are hemorrhaging ice faste... 阅读全文>>

日期：2014-12-03 Logging doesn't immediately jettison carbon stored in a forest's mineral soils into the atmosphere but triggers a gradual release that may contribute to climate change over decades, a Dartmouth College study finds. The results are the first evidence... 阅读全文>>

日期：2014-12-03 First developed in China in about the year A.D. 150, paper has many uses, the most common being for writing and printing upon. Indeed, the development and spread of civilization owes much to paper's use as writing material. According to some surveys... 阅读全文>>