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  • A field trial shows that text-message ‘nudges’ encourage people to get vaccinated against COVID-19. To be effective, nudge approaches such as this must combine three aspects: they must prompt, enable and motivate behaviour.

    • Mitesh S. Patel
    News & Views
  • An analysis in ageing nematode worms reveals reductions in the tagging of certain proteins for clearance. This can lead to the accumulation of unnecessary proteins, in turn impairing cellular and tissue function.

    • Bart P. Braeckman
    News & Views
  • Nature’s pages feature a 1971 review of a psychiatry book and a report from the 1921 Museums Association conference.

    News & Views
  • Light sources known as free-electron lasers can produce intense X-ray radiation for a wide range of applications. The process usually needs huge particle accelerators, but an experiment shows how to overcome this limitation.

    • Luca Giannessi
    News & Views
  • The enzymes separase and cyclin-dependent kinase are key orchestrators of cell division. Structural data reveal the surprisingly intricate mechanism that renders them both inactive when bound to each other.

    • Silke Hauf
    News & Views
  • Activation of the CatSper membrane ion channel triggers enhanced sperm motility, and this protein complex is required for male fertility. Structural data now provide insights into the channel, and offer a few surprises, too.

    • David E. Clapham
    • Raymond E. Hulse
    News & Views
  • Nature’s pages feature a discussion of global warming in 1971 and report that astronomy captured the imagination of world leaders in 1871.

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  • At the outer border of the brain and spinal cord, immune cells have been observed that originate from the bone marrow of the adjacent skull and vertebrae. They reach this site through special bone channels, without passing through the blood.

    • Britta Engelhardt
    News & Views
  • Small molecules produced and modified by gut microorganisms can influence human physiology. An atlas of metabolic outputs of diverse gut microbes offers new ways to decipher the microbial mechanisms behind their production.

    • William F. Kindschuh
    • Tal Korem
    News & Views
  • Atmospheric measurements show that deforestation and rapid local warming have reduced or eliminated the capacity of the eastern Amazonian forest to absorb carbon dioxide — with worrying implications for future global warming.

    • Scott Denning
    News & Views
  • Nature’s pages feature a 1971 report of ancient rock carvings indicating astronomical knowledge, and an 1871 look at alpine mountaineering and glaciers.

    News & Views