Katherine Harmon Courage

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    A New View of the Martian Globe

    This map of Mars provides an in-depth look at its expansive geography and topography.

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    Finding the Color of an Empire

    What a particular shade of black can teach us about an ancient civilization.

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    The World Is Full of Sleeping Beauties

    Success in nature and culture depends just as much on timing as it does on brilliance.

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    What Makes Someone Forgettable?

    One question for Michèle Belot, an economist at Cornell University.

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    Why Is Sea Level Rise Worse In Some Places?

    One question for Sönke Dangendorf, a coastal flooding researcher at Tulane University.

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    Even Machine Brains Need Sleep

    Without some downtime, artificial neural networks become catastrophically forgetful.

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    The Secret Life of the North Pole

    A universe of microbes is melting with Arctic ice—with consequences for us all.

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    Hear the Wind on Mars

    What we can learn from a Martian dust devil—and the sounds of other planets.

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    How Mental Time Travel Can Make Us Better People

    Kindness lives in the future-present.

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    Do Political Ads Influence Voting Behavior?

    One question for Donald Green, a political scientist at Columbia University.