Marcia Bjornerud

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    Let’s Get Granular

    Scientists have long puzzled over the behavior of mixed particles in rivers and landslides. New clues could be groundbreaking.

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    How Earth Once Cooled Off

    A geological discovery shows how carbon was captured to chill the planet.

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    A New Way to Trigger a Tsunami

    How historic records and new data uncovered the colossal underwater avalanche that unleashed a massive wave in 1650.

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    Earth’s Core Has a Gas Leak

    Contrary to conventional wisdom, matter can escape the center of the Earth.

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    Pangea’s Second Coming Won’t Be Chill

    Today’s mammals would not survive the heat of Earth’s next supercontinent. But in evolution, there’s hope.

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    Geology Makes You Time-Literate

    A scientist tells us how her field instills timefulness.