News

  1. Physics

    Light does some weird math

    Adding a photon to a light pulse then taking one out gives a different result from doing the same operations the other way around.

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  2. Health & Medicine

    Antibiotic improves recovery from stroke

    An antibiotic called minocycline seems to limit brain damage and disability in stroke patients.

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  3. Earth

    Arctic sea ice falls to modern low

    The area of sea ice in the Arctic is at its lowest in nearly three decades of satellite monitoring.

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  4. Anthropology

    Ancient DNA moves Neandertals eastward

    Evidence from mitochondrial DNA indicates that Neandertals lived 2,000 kilometers farther east than previously thought.