NASA has discovered a new life form that can grow by substituting arsenic for phosphorus, redefining the agency's search for different life forms other than the ones known on earth.The discovery was made by astrobiologists who performed tests by taking mud from Mono Lake -- a body of water in Northern California three times as…

Chrome 7 and iOS were the biggest winners for web market share in November, NetApplications said. Google's browser was reported as having the second fastest share gain of any individual browser version, jumping 5.64 percent to hit 8.02 percent of all browsers. All of Chrome reached 9.26 percent and widened a lead over Safari, which…