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  1. 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.

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  2. Astronomy

    Puny Parent? Planets may form around tiny orbs

    Barely more massive than a planet itself, a tiny failed star 500 light-years from Earth is nonetheless cloaked in a disk of gas and dust from which planets may coalesce.

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  3. Health & Medicine

    Disease Detector: Chemical test may spot Alzheimer’s

    A new test that detects very low levels of protein clumps associated with Alzheimer's may provide an early warning for the disease.