By Tom Brown MIAMI (Reuters) - The U.S. National Weather Service is getting a quantum jump in computing power that will significantly improve its forecasting and storm tracking abilities to better protect the country from severe weather. "This is a game changer," Louis Uccellini, who took over as director of the National Weather Service in February, told Reuters in an interview, calling it "the biggest increase in operational capacity that we've ever had. ...

By Irene Klotz CAPE CANAVERAL, Florida (Reuters) - NASA's first telescope dispatched to hunt for Earth-like planets that may support life elsewhere in the universe has lost use of its positioning system, threatening its mission, officials said on Wednesday. Launched in 2009, the Kepler space telescope revolutionized the study of so-called exoplanets, with discovery of 130 worlds orbiting distant stars and 2,700 potential planets still awaiting confirmation. ...

By Sharon Begley NEW YORK (Reuters) - After more than 15 years of failures by scientists around the world and one outright fraud, biologists have finally created human stem cells by the same technique that produced Dolly the cloned sheep in 1996: They transplanted genetic material from an adult cell into an egg whose own DNA had been removed. The result is a harvest of human embryonic stem cells, the seemingly magic cells capable of morphing into any of the 200-plus kinds that make up a person. ...