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  1. Particle Physics

    Readers ask about electrons’ roundness, a science board game and more

    Readers had questions about electrons’ roundness, a camera that measures light intensity in decibels and more.

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  2. Physics

    A weird type of zirconium soaks up neutrons like a sponge

    Zirconium-88 captures neutrons with extreme efficiency, and scientists don’t yet know why.

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  3. Animals

    Green darner dragonflies migrate a bit like monarch butterflies

    Some dragonflies do a north-south annual migration that takes at least three generations.

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  4. Quantum Physics

    ‘Beyond Weird’ and ‘What Is Real?’ try to make sense of quantum weirdness

    The books ‘Beyond Weird’ and ‘What is Real?’ have different perspectives on what quantum physics says about reality.