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  1. Physics

    New data zap views of static electricity

    Materials appear to build up charge by exchanging tiny bits of material, a study concludes.

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  2. Life

    Blue light used to treat diabetes

    Illumination triggers control of blood sugar in mice implanted with engineered human cells.

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  3. Health & Medicine

    Body & Brain

    Sight restored after 55 years, plus hockey-checking injuries, statins' diabetes link and more in this week's news.

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  4. Space

    Spacecraft goes from crash landing to mission accomplished

    The wreckage of the Genesis probe yields a bonanza of discoveries about conditions in the early solar system.