News

  1. Health & Medicine

    Natural fluoride isn’t quite enough

    In the absence of a public water-fluoridation program in eastern Germany, natural background concentrations of fluoride in drinking water affect children’s dental health.

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  2. Earth

    Child-care sites, health threats

    Federal agencies have completed the first national study of lead, pesticides, and allergens in U.S. child-care facilities.

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  3. Animals

    Hawkmoths can still see colors at night

    For the first time, scientists have found detailed evidence than an animal—a hawkmoth—can see color by starlight.

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  4. Tech

    Resistancefree wire takes long jump

    A wire-making company has demonstrated a process that yields potentially inexpensive, high-current superconducting wires about 10 times longer than previous prototypes.

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  5. Health & Medicine

    Study exonerates childhood vaccine

    A nationwide study in Denmark provides strong evidence that a childhood vaccine once blamed for some cases of autism plays no role in the development of that neurological disorder.

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  6. Astronomy

    Galactic cannibalism strikes again

    Astronomers have discovered the remains of a tiny galaxy that was swallowed by the galaxy Centaurus A only a few hundred million years ago.

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  7. Earth

    El Niños came more often in Middle Ages

    Analyses of layered sediments from a South American lake suggest that the worldwide warm spells known as El Niños occurred more frequently about 1,200 years ago, when Europe was entering the Middle Ages, than they do today.

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  8. Paleontology

    Forged fossil is a fish-eating fowl

    Detailed analyses of Archaeoraptor, a forged fossil once thought to be a missing link between dinosaurs and birds, reveal that the majority of that fake comes from an ancient, fish-eating bird.

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  9. Planetary Science

    Martian Radiation: Giving off a faint X-ray glow

    Astronomers have for the first time taken an X-ray image of the Red Planet.

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  10. Health & Medicine

    Predisposed to Trouble: Gene variants implicated in stomach cancer

    A person's risk of stomach cancer can depend on the genetics of both the individual and the bacterium Helicobacter pylori.

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  11. Ecosystems

    Worm Attacks: Invading earthworms threaten rare U.S. fern

    An unusual study of the effects of invading earthworms on North American plants finds that the exotics might be on the way to killing off a rare fern.

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  12. Lost That Smoking Feeling: Emotions sputter as cigarette motivator

    The first detailed effort to monitor the reactions of cigarette smokers as they carry out their daily activities finds that they feel neither better nor worse than at times when they don't begin smoking.

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