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  1. Earth

    Daily Planet Earth

    The Earth Science Picture of the Day Web site features photos, satellite images, and illustrations that highlight the diverse processes and phenomena shaping our planet and influencing our lives. A short explanatory caption and links to sources for more detailed information accompany each illustration. Go to: http://epod.usra.edu/

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  2. Health & Medicine

    Understanding Cancer’s Spread

    Where cancer goes, where it grows, and why.

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  3. Anthropology

    Evolution’s Youth Movement

    The fossils of ancient children may provide insights into the evolution of modern Homo sapiens.

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  4. 18942

    As an insect taxonomist, I was amused by your article about whimsical scientific names but disappointed that one of my favorites was not mentioned: the wasp Iaha ha. Sandra Shanks San Francisco, Calif. Three observations on your article: 1) Linnaean names, at their best, tell you something about the creature that is named. Thus while […]

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  5. A Fly Called Iyaiyai

    All that Latin has its light side.

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  6. Physics

    Electrons trip on tiny semiconductor steps

    A first glimpse of how a semiconductor's surface alters electrons' magnetic fields, or spins, suggests that tiny steps in the surfaces are tripping up efforts to create so-called spintronics circuits from semiconductors.

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  7. Health & Medicine

    Genetic flaw found in painful gut disease

    Scientists have discovered a genetic mutation that occurs in people with Crohn's disease, a digestive disorder that attacks the intestines.

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  8. Slave-making ants get rough in New York

    The whole ant slave-making business turns more violent in New York than in West Virginia, even though it features the same species.

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  9. Health & Medicine

    Poliovirus slaughters brain tumors in mice

    Scientists have altered a live polio virus, inducing it to target and kill brain tumor cells without causing polio.

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  10. Chemistry

    Designer surface proves deadly to bacteria

    Researchers have made a surface coating that kills bacteria on contact in a novel way.

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  11. Health & Medicine

    Antibiotic resistance is coming to dinner

    Foods tainted with bacteria that antibiotics don't kill are a recipe for more serious—even lethal—infections.

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  12. 18941

    I read the article “Look on the bright side and survive longer” with interest but was given pause by the fact that the nuns knew their autobiographies were “to be read by the congregation’s Mother Superior.” I think this may seriously undermine the conclusions drawn. Even without this problem, I think a basic distinction should […]

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