News

  1. Planetary Science

    Radar for rovers on future Mars trips?

    Scientists are developing ground-penetrating radar equipment that could serve as geologists' helpers on future Mars-roving vehicles.

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  2. Earth

    Spores record changes in ozone concentration

    Decreasing concentrations of atmospheric ozone over Antarctica have triggered changes in the spores of a plant that grows in the region, a trend that could give scientists insight into ancient extinctions.

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  3. Planetary Science

    Enceladus: Small but feisty

    Close-up observations of Saturn's tiny moon Enceladus reveal that its south pole is hotter than its equator and that the icy satellite continues to undergo eruptions.

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  4. Health & Medicine

    Stroke site is often not right

    Thousands of strokes in the right half of the brain may go unrecognized because their symptoms are less distinctive than those of left-side strokes.

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  5. Animals

    Getting the Gull: Baiting trick spreads among killer whales

    A young male orca that spits up fish and then ambushes gulls attracted to the mess seems to have started a wave of cultural transmission.

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  6. Bitty Beasts of Burden: Algae can carry cargo

    Scientists have devised a way to make single-cell algae bear loads over distances of several centimeters, a tactic that could prove useful in tiny machines.

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  7. Health & Medicine

    X Ray Excels: Technique brings a new image to medicine

    Recent advances in a technique called phase-contrast x-ray imaging could make it easier for physicians to spot tumors, clogged arteries, and other soft-tissue problems.

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  8. Health & Medicine

    Comb over Chemicals: Tool may rid heads of pesticideproof lice

    Used systematically, special combs may be more effective than insecticidal shampoos at ridding a child's scalp of head lice.

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  9. Anthropology

    Reservoirs of Evolution: Rainy periods linked to human origins in Africa

    Three phases of heavy rainfall in eastern Africa between 2.7 million and 900,000 years ago created deep lakes and might have played a critical role in the evolution of human ancestors.

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  10. Health & Medicine

    Outwitting TB: Enhanced vaccine protects mice in lab tests

    An enhanced vaccine appears to offer better protection against tuberculosis than the current version does, a study in mice suggests.

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  11. Materials Science

    Fine Fabric: New, fast way to make sheets of nanotubes

    Scientists have come up with a way to efficiently produce thin, transparent sheets of carbon nanotubes that are several meters long.

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  12. Earth

    Inhaling salt raises blood pressure

    People who work in environments where large amounts of salt particles hang in the air may literally breathe their way to high blood pressure.

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