Science

  • August 9, 2011    

    Photo by SAEED KHAN/AFP/Getty Images That “viral” metaphor for social media just got a little more bona fide. According to a recent slate of independent studies, Twitter can accurately track the spread of a virus or disease — and do … Continue reading

  • August 9, 2011    

    After 16 days of battling fierce mosquito swarms and hauling heavy equipment along a poorly charted river, Nature Conservancy’s M. Sanjayan and a group of young members from the Dene First Nation have completed their 200-mile trek along the Thelon … Continue reading

  • August 8, 2011    

    US swimmer Diana Nyad jumps into the water at Ernest Hemingway Nautical Club in Havana on August 7, beginning her 103-mile journey. Photo by AFP/Getty Images. Update: August 9, 8:50 a.m. ET After 29 hours in the water, shifting winds … Continue reading

  • August 8, 2011    

    Photo by Flickr user Allan Foster. Most of the earth is covered by water, yet more than a third of the global population experiences periodic shortages of the kind used for drinking and agriculture. So why not convert seawater into … Continue reading

  • August 5, 2011    

    For this week’s Science Nation, Miles O’Brien reports on a neuroanatomist who is using real brains to build three-dimensional brain maps. Neuroanatomist Jacopo Annese, director of the brain observatory at University of California, Los Angeles, collects and slices up brains … Continue reading

  • August 5, 2011    

    For the first time in 16 years, NASA is heading back to planet Jupiter to look beyond the planet’s clouds and hopefully get some answers on the earliest days of the solar system. At 12:25 p.m., the four-ton Juno spacecraft … Continue reading

  • August 4, 2011    

    During its warmer seasons, dark fingerlike streaks that look like rivers, streams and small channels appear along the hills and slopes of Mars. The markings are seasonal: They swell during the planet’s warm season and fade as it gets cold, … Continue reading

  • August 4, 2011  

    The public learned this week of a five-year, high-level hacking campaign that infiltrated computer systems of more than 70 governments, corporations and public and private organizations in 14 countries. Margret Warner discusses the hack, uncovered by McAfee, with Vanity Fair’s Michael Joseph Gross, who broke the story. Continue reading

  • August 3, 2011    

    Photo by WTL via Flickr. No frequent flyer is a stranger to turbulence. But what causes it, and how dangerous is it? Turbulence is the random, chaotic motion of air, caused by changes in air currents. From inside an airplane, … Continue reading

  • August 3, 2011  

    What have you been watching on your computer lately? More and more Americans are checking out movies and television program online. Hari Sreenivasan discusses the recent push toward more streaming content with GershonMedia’s Bernard Gershon. Continue reading