Vol. 203 No. 9
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More Stories from the May 6, 2023 issue

  1. Chemistry

    Here’s why some Renaissance artists egged their oil paintings

    Some Renaissance artists created eggs-quisite paintings by adding yolks to oil paints, which may have helped add texture and prevent yellowing.

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  2. Life

    How some beetles ‘drink’ water using their butts

    Red flour beetles, a major agricultural pest, suck water out of the air using special cells in their rear ends, a new study suggests.

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  3. Neuroscience

    Scientists triggered the flow of spinal fluid in the awake brain

    If future studies confirm these waking waves wash away toxic proteins from the brain, the finding could lead to new treatments for brain disorders.

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  4. Health & Medicine

    A new battery starves cancer cells of oxygen in mice

    When a self-charging battery is placed on a mouse’s tumor and combined with anticancer drugs, it reduced tumor size by 90 percent.

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  5. Animals

    Freshwater leeches’ taste for snails could help control snail-borne diseases

    A freshwater leech species will eat snails, raising the possibility that leeches could be used to control snail-borne diseases that infect humans and livestock.

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  6. Anthropology

    Native Americans corralled Spanish horses decades before Europeans arrived

    Great Plains groups incorporated domestic horses into their cultures by the early 1600s, before Europeans moved north from Mexico.

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  7. Physics

    The W boson might not be heavier than expected after all

    A new and improved look at the mass of the W boson is in close alignment with theory, but it doesn’t negate an earlier, controversial measurement.

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  8. Animals

    The last leg of the longest butterfly migration has now been identified

    After a long journey across the Sahara, painted lady butterflies from Europe set up camp in central Africa to wait out winter and breed.

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  9. Oceans

    ‘Jet packs’ and ultrasounds could reveal secrets of pregnant whale sharks

    Only one pregnant whale shark has ever been studied. New underwater techniques using ultrasound and blood tests could change that.

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  10. Climate

    Baseball’s home run boom is due, in part, to climate change

    Higher air temperatures led to an average of 58 more home runs each MLB season from 2010 to 2019, a study shows.

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  11. Animals

    Hibernating bears don’t get blood clots. Now scientists know why

    People who sit still for hours have an increased risk of blood clots, but hibernating bears and people with long-term immobility don’t. A key clotting protein appears to be the reason why.

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  12. Astronomy

    The first black hole portrait got sharper thanks to machine learning

    A machine learning technique filled in data gaps in the image of M87’s black hole, resulting in a thinner ring.

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  13. Animals

    This sea cucumber shoots sticky tubes out of its butt. Its genes hint at how

    A new genetics study is providing a wealth of information about silky, sticky tubes, called the Cuvierian organ, that sea cucumbers use to tangle foes.

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  14. Planetary Science

    Saturn’s icy rings are probably heating its atmosphere, giving it an ultraviolet glow

    Detecting similar emission from a distant world could help astronomers find other planets that boast bright and beautiful rings.

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  15. Space

    50 years ago, cosmic rays may have caused Apollo astronauts to see lights

    Apollo astronauts reported seeing flashes of light where there were none. Fifty years later, the flashes still mess with modern astronauts’ vision.

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