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  1. Health & Medicine

    Cell phone-cancer study an enigma

    An epidemiological study of a link between cell phone usage and brain cancer proved inconclusive.

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  2. Health & Medicine

    Caring for a spouse with dementia leaves caregiver at risk

    Wives and husbands who attend to mates have greater chance of developing problems themselves, a new study finds.

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  3. Life

    Light shows fMRI works as advertised

    Optogenetic method validates assumption underlying brain imaging technique.

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  4. Physics

    Record number of photons lassoed into a quantum limbo 

    Physicists entangle five particles, each existing in two states simultaneously.

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  5. Science & Society

    Students win big at Intel ISEF 2010

    Global high school science competition concludes with top prizes going to projects on cancer-fighting quantum dots, quantum computer algorithms and computer programming.

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  6. Planetary Science

    Martian moon probably pretty porous

    Phobos may be a mass of rocky rubble, not a captured asteroid.

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  7. Space

    Planets in nearby system are off-kilter, measurements show

    New observations shatter the notion that other planetary systems have the same flattened, disclike arrangement of orbits that rings the sun.

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  8. Animals

    Fight or flee, it’s in the pee

    Researchers get a better understanding of how mice smell a rat, or a cat, and maybe even a snake.

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  9. Humans

    2010 Intel ISEF showcases next-gen scientists

    Top high school scientists from around the world compete for more than $4 million in prizes at weeklong competition.

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  10. Earth

    Lizards threatened by warming

    Analysis suggests climate change could wipe out 20 percent of species, 39 percent of local populations.

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  11. Earth

    Earliest birds didn’t make a flap

    The feathers of Archaeopteryx and Confuciusornis probably were not strong enough to support sustained flight.

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  12. Humans

    Grown men swap bodies with virtual girl

    People who undergo virtual-reality perspective shifts feel like they’ve switched bodies with a virtual character.

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