Vol. 202 No. 8
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More Stories from the November 5, 2022 issue

  1. Archaeology

    50 years ago, Stonehenge’s purpose mystified scientists. It still does

    In 1972, scientists thought Stonehenge may have been a calendar. Today, we still don’t know its purpose, but we have gained insight on its origin.

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  2. Humans

    How to get a crying baby to sleep, according to science

    Science has come up with a recipe for lulling a crying baby to sleep: Carry them for five minutes, sit for at least five more and then lay them down.

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  3. Health & Medicine

    This robotic pill clears mucus from the gut to deliver meds

    A whirling robotic pill wicks mucus from the gut, allowing intravenous drugs such as insulin to be given orally, experiments in pigs suggest.

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  4. Planetary Science

    Here is the first direct look at Neptune’s rings in more than 30 years

    In 1989, the Voyager 2 spacecraft took the first pics of Neptune’s rings. Now, NASA’s James Webb Space Telescope is providing a more detailed look.

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  5. Neuroscience

    Clumps of human nerve cells thrived in rat brains

    New results suggest that environment matters for the development of brain organoids, 3-D nerve cell clusters that grow and mimic the human brain.

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  6. Astronomy

    A protogalaxy in the Milky Way may be our galaxy’s original nucleus

    Millions of ancient stars spanning about 18,000 light-years at the Milky Way’s heart are the kernel around which the galaxy grew, researchers say.

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  7. Physics

    Despite a retraction, a room-temperature superconductor claim isn’t dead yet

    A high-profile retraction called a superconductivity result into question. But a new experiment appears to support it.

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  8. Physics

    Quantum experiments with entangled photons win the 2022 Nobel Prize in physics

    Three pioneers in quantum information science share this year’s Nobel Prize in physics.

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  9. Health & Medicine

    Genetics of human evolution wins 2022 Nobel Prize in physiology or medicine

    By figuring out how to extract DNA from ancient bones, Svante Pääbo was able to decipher the genomes of our hominid relatives.

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  10. Chemistry

    A way to snap molecules together like Lego wins 2022 chemistry Nobel

    Click chemistry and bioorthogonal chemistry allow scientists to build complex molecules in the lab and in living cells.

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  11. Health & Medicine

    Losing amphibians may be tied to spikes in human malaria cases

    Missing frogs, toads and salamanders may have led to more mosquitoes and potentially more malaria transmission, a study in Panama and Costa Rica finds.

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  12. Climate

    Climate change could turn some blue lakes to green or brown

    As temperatures rise, more than 1 in 10 of the world’s blue lakes could change color, reflecting holistic shifts in lake ecosystems.

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  13. Microbes

    How dormant bacteria spores sense when it’s time to come back to life

    Bacterial cells shut down and become spores to survive harsh environments. An internal countdown signals when it’s safe for bacteria to revive.

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  14. Life

    A metal ion bath may make fibers stronger than spider silk

    The work is the latest in a decades-long quest to create artificial fibers as strong, lightweight and biodegradable as spider silk.

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  15. Planetary Science

    Mars’ buried ‘lake’ might just be layers of ice and rock

    Evidence grows that possible detections of liquid water buried near Mars’ south pole might not hold water.

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  16. Animals

    Video captures young mosquitoes launching their heads to eat other mosquitoes

    New high-speed filming gives a first glimpse of mosquito hunting too fast for humans to see.

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  17. Paleontology

    Pterosaurs may have evolved from tiny, fast-running reptiles

    A mysterious little ground-dwelling reptile unearthed in a Scottish sandstone over 100 years ago turns out to be part of a famous flying family.

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  18. Health & Medicine

    Cooperative sperm outrun loners in the mating race

    Sperm that swim in clusters travel more directly toward the uterus, while overcoming fluid currents in the reproductive tract.

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