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OTTAWA (Reuters) - The widely used weed killer atrazine affects the sexual development of frogs, raising questions about the effects of its use in the environment, the University of Ottawa said on Thursday. Full Story »
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WASHINGTON (Reuters) - The U.S. government approved the first 13 batches of human embryonic stem cells on Wednesday, enabling researchers using them to get millions of dollars in federal funding as promised by President Barack Obama in March. Full Story »
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ARKALYK, Kazakhstan (Reuters) - Three astronauts landed safely in the frozen steppe of northern Kazakhstan on Tuesday after six months orbiting the world on the International Space Station. Full Story »
PARIS (Reuters) - French scientists have found a way to create human skin rapidly from stem cells, a discovery that could save the lives of many burns victims who are vulnerable to infection and now wait weeks for a skin graft. Full Story »
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GENEVA (Reuters) - The "Big Bang" experiment at CERN near Geneva scored a world record on Monday by accelerating beams to the highest energy ever achieved in a particle collider, the research center announced. Full Story »
KOROLYOV, Russia (Reuters) - A Russian Soyuz space capsule carrying three astronauts from the International Space Station landed in Kazakhstan on Tuesday. Full Story »
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CAPE CANAVERAL, Florida (Reuters) - Space shuttle Atlantis touched down at its Florida home port on Friday, wrapping up an 11-day mission to deliver cargo to the International Space Station, one of NASA's final supply runs before the shuttle fleet is retired next year. Full Story »
HONG KONG (Reuters) - A large analysis of the genes of 8,200 ethnic Chinese has revealed subtle genetic differences between inhabitants in northern China and southern China, and even between different Chinese dialect groups. Full Story »
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LONDON (Reuters) - British scientists say a perfect combination of testosterone, experience and a hunger for a share of profits can produce financial traders who consistently outperform the market -- even during a crisis. Full Story »
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ZURICH (Reuters) -- Scientists have smashed together proton beams for the first time in a 27-kilometre tunnel under the French-Swiss border in an initial step toward discovering how the universe came into existence, they said on Monday. Full Story »
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