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  1. Archaeology

    Mystery void is discovered in the Great Pyramid of Giza

    High-energy particle imaging helps scientists peek inside one of the world’s oldest, largest monuments.

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  2. Earth

    Dino-dooming asteroid impact created a chilling sulfur cloud

    The Chicxulub impact spewed more sulfur than previously believed.

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  3. Earth

    Wind may be driving the melting of East Antarctica’s largest glacier

    Winds may be helping warm ocean waters speed up the melting of East Antarctica’s largest glacier.

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  4. Astronomy

    The way hungry young stars suck in food keeps most X-rays in, too

    The columns of plasma that feed growing stars develop an extra layer that keeps X-rays in.