News

  1. Humans

    Letters

    Letters from the Nov. 29, 2003, issue of Science News.

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  2. There’s no faking it

    The brain activity in men and women having an orgasm is very similar.

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  3. HIV protein breaks biological clock

    The AIDS virus secretes a protein that interferes with an animal's biological clock.

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  4. Health & Medicine

    Cleaning up glutamate slows deadly brain tumors

    Eliminating the glutamate released by brain tumors may slow the cancer's growth.

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  5. Protein triggers nerve connections

    Nonnerve cells called astrocytes secrete a protein that enables nerve cells to connect.