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VIDEO: A Tornado On The Sun

A new NASA satellite captured a massive tornado on the surface of the sun.
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WHO Panel Supports Publication Of Bird Flu Details, Eventually

Research that produced genetically altered bird flu viruses that could pose a danger to people should remain on hold for now. But a panel of experts recommended the details of the experiments should be published.
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WHO Affirms Use Of Birth Control Injections After Weighing HIV Risks

The WHO upheld its guidelines on the safety of hormone injections for contraception yesterday, despite some data that users are at increased risk of HIV transmission. An expert panel says the evidence isn't solid yet, and at-risk couples should use a second method, like condoms, for HIV prevention.
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Desert Military Bases Could Be Boon To Solar

Military bases in the California desert could host seven gigawatts of solar power installations--roughly equivalent to the output of seven nuclear plants--according to a study commissioned by the Department of Defense. Study director Robert Kwartin discusses the report.
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Where's The Cuttlefish

Duke biologist Sarah Zylinski wants to better understand how cuttlefish see the world. Like their relatives octopus and squid, cuttlefish are master camouflagers--and Zylinski says you can learn something about how they process visual information by testing how they change their skin patterns in relation to different backgrounds.
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Digital Tools Help Document Vanishing Languages

Linguist David Harrison has travelled to remote corners of the world seeking the last speakers of endangered languages. Now, he's using digital tools to to record and revitalize these dying languages. At the AAAS meeting this week, Harrison unveiled 'talking dictionaries' for eight languages.
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Concrete's Role As A Building Block In History

In his book Concrete Planet, author Robert Courland discusses why the concrete first used by the Romans is more durable than the concrete used in most present day buildings. Plus, mineralogist Peter Stemmerman tells us about his invention, Celitement and why it is greener than Portland cement.
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Approved Reactors Could Power Up Nuclear Industry

Federal regulators signed off on the construction and operation of two nuclear reactors at a Georgia plant. It's the first license to be granted for a new reactor in the U.S. since 1978. Nuclear expert Per Peterson discusses the reactors' design, safety features and what this means for the future of nuclear power.
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Questions About Bird Flu Research Swirl Around Private WHO Meeting

A small group has gathered at the World Health Organization in Geneva to discuss a controversy over experiments that generated genetically altered viruses. After the meeting, which ends Friday, the WHO will announce what happened behind closed doors.

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