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  1. Earth

    Deep-sea gear takes wild ride on lava

    When a set of instruments monitoring an underwater volcano got trapped in an eruption in early 1998, the scientists who had deployed the sensors ended up with more data than they bargained for.

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  2. Animals

    Smart tags show unexpected tuna trips

    The first report on Atlantic bluefin tuna wearing electronic tags reveals much more dashing across the ocean than expected.

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  3. Astronomy

    Astronomers spy familiar planetary system

    Studying a star in the Big Dipper, astronomers have for the first time found a planetary system that reminds them of home.

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  4. Health & Medicine

    Drugs Counter Mad Cow Agent in Cells

    Fueled only by promising studies of cells, a California research team has invited controversy by beginning to give a little-used malaria drug to patients who have the human version of mad cow disease.