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  1. Juggling takes stage as brain modifier

    Marked volume increases occur in visual areas of the brain as people learn to juggle and then are partly reversed when the budding jugglers stop practicing their newfound skill, a brain-scan investigation finds.

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  2. Physics

    New signs of shadow particles

    The influence of as-yet-undiscovered heavy particles outside of today's prevailing theory of particle physics may have accelerated the rate at which subatomic muons wobbled in a recent experiment.

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  3. Growth factors make an egg grow up

    Scientists have identified growth factors that enable a female mammal's eggs to mature.

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  4. Astronomy

    Scoping out a stellar nursery

    Penetrating a veil of dust, a space-based infrared observatory has recorded the most complete portrait ever taken of a star-forming region in a nearby galaxy.