Brian Gallagher

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    A New Look at One of the Oldest Weapons

    What a 300,000-year-old throwing stick reveals about our near-human ancestors.

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    The Problem with the Mutation-Centric View of Cancer

    Researchers need to widen their focus on the micro-environments in which cancer thrives.

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    There May Be Two Trillion Other Galaxies

    Every point in the sky contains part of a galaxy.