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  1. Long Live the Mammals: Antioxidant redirection extends mouse life span

    Increasing the amount of antioxidants naturally produced in the body and directing those molecules to where they're needed can dramatically slow the aging process, according to a new study in mice.

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  2. Astronomy

    Planetary Picture? Criteria for planethood cloud object’s identity

    Astronomers are debating whether an image of a planetary-mass object orbiting a brown dwarf qualifies as the first image of an extrasolar planet.

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  3. Animals

    Alive and Knocking: Glimpses of an ivory-billed legend

    New observations confirm that the famed ivory-billed woodpecker has not gone extinct after all.

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  4. Humans

    Letters from the May 7, 2005, issue of Science News

    Clearer yet “Weighing In on a Star: A stellar size limit” (SN: 3/12/05, p.