News

  1. Life

    Bacteria in bondage

    Cells unleash proteins to cage unwanted invaders.

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  2. Health & Medicine

    Scooters save lives of snakebite victims

    Nepal project achieves dramatic drop in deaths by using motorbike helpers to rush the stricken to hospital.

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  3. Health & Medicine

    E. coli evade detection by going dormant

    When stressed, bacteria can temporarily turn comatose and dodge germ-screening tests.

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  4. Space

    Distant world looks ripe for life

    Extrasolar planet hunt spots its most Earthlike orb yet.

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  5. Humans

    DNA highlights Native American die-off

    A genetic analysis points to widespread New World deaths after Europeans arrived.

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  6. Humans

    Saving the Last Supper

    Tourists and cosmetics seem to be threatening da Vinci’s masterpiece.

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  7. Earth

    Arctic has taken a turn for the warmer

    Northern climate has changed substantially in the last five years, and the shift is probably permanent.

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  8. Humans

    Neandertals’ mammoth building project

    Stone Age people’s evolutionary cousins may have constructed earliest bone structures.

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  9. Earth

    Polar ice sheets are synchronized swimmers

    Glaciers in the Northern and Southern Hemispheres advance and retreat together.

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  10. Health & Medicine

    Immune booster also works in reverse

    Injections of the protein interleukin-2 can calm runaway defenses that damage tissues in the body, two studies show.

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  11. Health & Medicine

    Weaker brain links found in psychopaths

    Decreased communication between emotional and executive centers may contribute to the mental disorder.

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  12. Space

    Christmas gamma-ray burst still puzzles

    Nearly a year after receiving a spectacular celestial gift, astrophysicists are still asking: “What is it?”

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