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  1. Materials Science

    Petrified wood: Quick and easy

    Materials scientists have turned wood into stone in a matter of days, mimicking a natural process that takes millions of years.

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  2. Health & Medicine

    There’s the Rub: Football abrasions can lead to nasty infections

    U.S. football players who get scrapes and cuts from playing on artificial turf sometimes develop bacterial infections that are resistant to some antibiotics.

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  3. A Bug’s Life: E. coli can’t escape old age

    Bacteria that divide symmetrically, once thought to be functionally immortal, may age and die just like other organisms do.

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  4. Health & Medicine

    When Ebola Looms: Human outbreaks follow animal infections

    A network of organizations in an African region prone to Ebola epidemics has identified the virus in wild-animal remains prior to two recent human outbreaks, suggesting that animal carcasses may provide timely clues that could prevent the disease from spreading to people.