News

  1. Planetary Science

    Red Planet Makes a Splash: Rover finds gush of evidence for past water

    A robotic rover on Mars has gathered what scientists are calling the best evidence to date that liquid water once flowed on the Red Planet.

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  2. Chemistry

    Clean hydrogen fuel from corn?

    A new reactor can convert ethanol from corn into hydrogen fuel with enough efficiency to make the process economical.

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  3. Tech

    Silicon goes optical

    The advent of a fast, light-manipulating microdevice made from silicon suggests that speedy optical-fiber links now too expensive for broad use in businesses and homes may soon become widespread.

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  4. Health & Medicine

    Quantum sentinels

    Quantum physics may soon help physicians track whether a cancer has spread.