News

  1. Astronomy

    Core mystery

    Despite new images from the Hubble Space Telescope, the brightest known supernova of the past 400 years remains a puzzle for astronomers.

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  2. Astronomy

    Triple Play: A planet with three suns

    Three suns grace the skies above a newly found, Jupiterlike extrasolar planet, posing a puzzle for how massive planets form in a closely-knit, multiple-star system.

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  3. Physics

    Realistic Time Machine? New design could forgo exotic ingredient

    A novel time machine concept may avoid a problem of earlier, less-practical proposals by requiring only normal matter and the vacuum known to exist in space.

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  4. Earth

    Pollution Ups Blood Pressure: Inhaled particles linked to transient effect

    In a laboratory setting, volunteers breathing pollutants generated by sources such as vehicle engines experience slight but steady increases in blood pressure.

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  5. Earth

    Arctic Foulers: Foraging seabirds carry contaminants home

    When seabirds go out looking for food, they can bring home traces of pollutants that build up around their nesting colonies.

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  6. Earth

    Power-laden winds sweep North America

    There's more than enough wind power to satisfy the United States' energy requirements, a new analysis of weather data suggests.

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  7. Health & Medicine

    Brain Power: Stem cells put a check on nerve disorders

    Adult neural stem cells protect the brain against repeated episodes of inflammation in disorders such as multiple sclerosis by killing inflammatory immune cells.

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  8. Health & Medicine

    Cancer Switch: Good gene is shut off in various malignancies

    A gene called Reprimo is shut down in several cancers but rarely in healthy cells.

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  9. Health & Medicine

    Codes for Killers: Knowledge of microbes could lead to cures

    Scientists have deciphered the DNA of the parasites responsible for African sleeping sickness, Chagas' disease, and leishmaniasis.

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  10. Tech

    Wiring up molecules

    Minuscule gaps of controlled sizes in gold microwires may serve as test sites for probing properties of specks of material as small as a single molecule and as a basis for novel sensors and circuit components.

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  11. Hypnosis subdues the visual brain

    Hypnotic suggestions to perceive written words as gibberish depress activity in brain areas responsible for vision, possibly reflecting a hypnosis-induced decline in attention paid to visual objects.

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  12. Animals

    Is eyeless sea creature fishing with a red light?

    Researchers off the coast of California have captured three deep-water siphonophores, relatives of jellyfish, and observed in the lab that the creatures twitch little red lights that could be lures for fish.

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