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Volume 7 Issue 1, January 2023

Using intelligent machines wisely

Artificial intelligence is ubiquitous in software applications: it recommends books and films, performs facial recognition, drives cars and so on. But with the new chatbot ChatGPT, artificial intelligence has come to the masses. It can be instructed using natural language to write essays, compose music, debug software, and the list goes on. Should we draw a line on how we use it, and if so, where?

See Editorial

Image: NASA, ESA, CSA, and STScI (background); Bruce Rolff/Stocktrek Images / Getty (neurons). Cover design: Bethany Vukomanovic.


  • The launch of ChatGPT late last year has school teachers, conference organizers, Google and others worried, for different reasons. Where should we draw the line when it comes to artificial intelligence?



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Books & Arts

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Research Highlights

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News & Views

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  • Data from the gravitational wave event GW190521 can be explained by a semi-analytical model of two stellar-mass, nonspinning black holes on highly eccentric, hyperbolic orbits that undergo two close encounters before merging into an intermediate-mass black hole.

    • R. Gamba
    • M. Breschi
    • A. Nagar
  • Solar wind observations from the Magnetospheric Multiscale mission reveal bursty, turbulent properties within a reconnection diffusion region, in contrast with the usual quasi-steady state of solar wind reconnection. Between October 2017 and May 2019 75 other similar events were identified, indicating the relevance of turbulent reconnection in the solar wind.

    • Rongsheng Wang
    • Shimou Wang
    • Walter Gonzalez
  • Oxygen isotopic measurements from the Ryugu returned sample suggest that primitive hydrated carbonaceous chondrites are an important source of early water and other volatiles to Earth, despite being underrepresented in our meteorite collection due to their preferential destruction during atmospheric entry.

    • Richard C. Greenwood
    • Ian A. Franchi
    • Yuichi Tsuda


    Article Open Access
  • Observational evidence from planetary systems around white dwarfs shows that planetesimal formation occurs during the first few hundred thousand years after cloud collapse. Iron accreted by these white dwarfs must have been formed by short-lived radioactive nuclides driving iron core formation in planetesimals that form together with the parent star.

    • Amy Bonsor
    • Tim Lichtenberg
    • Andrew M. Buchan
  • An ultraviolet- and carbon-rich environment is needed to explain the bright emission coming from complex organic molecules observed near the midplane of protoplanetary disks. This implies that the gaseous reservoir from which actively forming planets accrete is carbon and organic rich.

    • Jenny K. Calahan
    • Edwin A. Bergin
    • Ke Zhang
  • Exoplanets with radii between 1.4 and 2.5 R may have atmospheres strongly enhanced in helium after a few billion years, due to the preferential loss of hydrogen over helium via photoevaporation. If observed, this phenomenon could demonstrate the importance of photoevaporation in shaping the radius valley.

    • Isaac Malsky
    • Leslie Rogers
    • Nadejda Marounina
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