Vol. 202 No. 10
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Cover of the December 3, 2022 issue

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More Stories from the December 3, 2022 issue

  1. Physics

    50 years ago, physicists found the speed of light

    In the 1970s, scientists set a new maximum speed limit for light. Fifty years later, they continue putting light through its paces.

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  2. Chemistry

    Mixing gold ions into whiskey can reveal its flavor

    By changing the spirit’s color, the formation of gold nanoparticles can reveal how much flavor a whiskey has absorbed from its wood cask.

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  3. Animals

    Deer-vehicle collisions spike when daylight saving time ends

    In the week after much of the United States turns the clock back, scientists found a 16 percent increase in crashes between vehicles and deer.

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  4. Astronomy

    Part of a lost, ancient star catalog has now been found

    Greek astronomer Hipparchus may be the first to try to precisely map the stars. His lost work turned up on parchment that had been erased and reused.

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  5. Physics

    Crowdsourced cell phone data could keep bridges safe and strong

    Accelerometers and GPS sensors in smartphones could provide frequent, real-time data on bridge vibrations, and alert engineers to changes in integrity

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  6. Health & Medicine

    A major malaria outbreak in Ethiopia came from an invasive Asian mosquito

    Malaria may become a much bigger problem in Africa’s cities if the invasive mosquito continues to spread.

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  7. Health & Medicine

    Cat allergies may be tamed by adding an asthma therapy to allergy shots

    Adding an antibody already used to treat asthma to standard allergy shots improved cat allergy symptoms for a least a year, a small study finds.

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  8. Planetary Science

    Marsquakes hint that the planet might be volcanically active after all

    Seismic data recorded by NASA’s InSight lander suggest molten rock moves tens of kilometers below the planet’s fractured Cerberus Fossae region.

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  9. Animals

    Insect swarms might generate as much electric charge as storm clouds

    Honeybees flying over a sensor measuring atmospheric voltage sparked a look into how insect-induced static electricity might affect the atmosphere.

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  10. Archaeology

    Drone photos reveal an early Mesopotamian city made of marsh islands

    Urban growth around 4,600 years ago, near what is now southern Iraq, occurred on marshy outposts that lacked a city center.

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