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  1. Climate

    Human-driven climate change sent Pacific Northwest temperatures soaring

    As scientists dissect what pushed temperatures up to 5 degrees Celsius above previous records, they may have to revamp how to predict heat waves.

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  2. Space

    Souped-up supernovas may produce much of the universe’s heavy elements

    An old star that formed from an explosive event called a magnetorotational hypernova is revealing where elements like uranium and silver might be forged.

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  3. Agriculture

    A tweaked yeast can make ethanol from cornstalks and a harvest’s other leftovers

    By genetically modifying baker’s yeast, scientists figured out how to get almost as much ethanol from cornstalks as kernels.

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  4. Health & Medicine

    How antibodies may cause rare blood clots after some COVID-19 vaccines

    Vaccine-induced antibodies attach to a specific spot on a protein involved in clot formation, a study suggests.