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  1. Humans

    The man behind Sarcastic Rover

    NASA’s newest rover, Curiosity, wasn’t alone on Mars for long.

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  2. Life

    Fasting hormone helps mice live longer

    A protein can trick the body into entering starvation mode.

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  3. Microbes

    Protecting the planet

    Catharine “Cassie” Conley has the coolest job title at NASA: She’s the agency’s planetary protection officer. (The best title used to be “director of the universe,” but a reconfiguration a few years back eliminated that job description, she says.)

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  4. SN Online

    ON THE SCENE BLOG Deep brain stimulation shows promise for treating spinal cord injuries.