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  1. Health & Medicine

    Lining medical stents with hairlike fuzz could fend off infections

    Implanted tubes that transport bodily fluids can get gross. A lab prototype suggests a new vibration-based way to keep them clean and prevent infection.

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  2. Physics

    Physicists explain how cheese rosettes form

    Rosettes made by scraping Tête de Moine, or “monk’s head,” cheese result from variations in the friction between the blade and the cheese.

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  3. Space

    A Soviet spacecraft has returned to Earth

    Kosmos 482 launched for Venus in 1972 but never left Earth orbit. The spacecraft finally lost enough energy that it couldn't fight gravity anymore.

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  4. Animals

    Ancient poems document the decline of the Yangtze finless porpoise

    The porpoise is critically endangered.