Commander Oleg Kotov (left) and Sergey Ryanzansky, preparing for a spacewalk aboard the ISS on Nov. 9.
One of two systems used to dissipate heat from the station's onboard system is acting up, but the space agency says it's not a dangerous situation for the moment.
December 11, 2013 People who have surgery or are hospitalized for serious illnesses sometimes develop dangerous staph infections. The culprits can be bacteria that were living on people all along. Scientists say the germs thrive in remote parts of the nose that aren't typically tested. Other benign microbes might help keep the bad ones at bay.
December 11, 2013 The European Space Agency's probe has spent the last decade doing flybys of Earth and Mars to match comet 67P/Churyumov-Gerasimenko's speed.
December 11, 2013 Shifting to a diet that's packed with pork, cheese and eggs has a big influence on the trillion of bacteria living in our guts, even after just a few days, new research shows. And some of these changes probably aren't so good. One type of microbe that flourishes under the meat-based diet has been linked to diseases in mice.
December 11, 2013 Once the Cold War ended, much of Russia's surplus uranium from thousands of decommissioned weapons wound up in crumbling military facilities. In 1993, the U.S. Department of Energy made a deal to have the material converted to fuel for U.S. power plants. The last shipment arrives today.
December 10, 2013 The 2014 Winter Olympics will unfold in a resort town on the relatively warm Black Sea — a testament to how far man-made snow has come in recent years. The strategy to supply snow includes a massive system of more than 550 machines — plus insulated blankets to protect piles of already-made white stuff.
December 10, 2013 The vaccine made by Novartis isn't approved for general use in the United States. But the Food and Drug Administration is allowing it on the Princeton campus. The university is offering the vaccine to students and some other people on campus through Thursday.
December 10, 2013 A herd of goats make a seemingly miraculous escape from an avalanche in the Alps.
December 10, 2013 Organic milk contains about 62 percent more omega-3s than milk from cows on conventional dairy farms, a new U.S.-based study finds. To get the full boost of these healthful fatty acids, you'll need to drink whole milk.
December 10, 2013 An NPR poll finds that most elementary school kids have physical education classes just one or two days a week. In response, parents and educators are getting kids to squeeze in walks, jogs and jumping jacks before, after and even during school.
December 10, 2013 Lacing a sugar-free candy with the right kind of bacteria might one day help fight off tooth decay, a study suggests. The experimental mint lowered the levels of cavity-causing bacteria in volunteers' saliva. But the microbe candy still has a long way to go before it reaches shelves at Walgreens.