News

  1. Health & Medicine

    Prions more mobile than thought

    Scientists coax pathogens from cow and goat to infect engineered mice, suggesting disease agents can readily jump from one species to another.

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  2. Space

    More like Faux-malhaut b

    The Spitzer Space Telescope fails to find a visible planet circling where Hubble saw one four years ago.

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  3. Chemistry

    Measuring what makes a medicine

    A new way to evaluate molecules offers a finer-grained picture of which ones could become drugs.

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  4. Space

    Molten blobs create moon flashes

    Mysterious lunar lights are the superhot remains of meteorites pelting the surface.