Articles in 2023

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  • Near-infrared observations of large dark asteroids in the main belt reveal that they have spectral characteristics similar to those of the dwarf planet Ceres. Thermal evolution models suggest that these asteroids accreted at large orbital distances and may have been implanted into the main belt by the dynamic instability of the giant planets.

    Research Briefing
  • The large, low-albedo asteroids in the main belt between 3.0 au and 3.4 au share spectral characteristics and history with Ceres. Accreted in different parts of the outer Solar System, they might have been implanted into the main belt by the dynamic upheaval created by the giant planets’ instability.

    • Driss Takir
    • Wladimir Neumann
    • Mario Trieloff
    Article
  • Mapping the 158 μm line of ionized carbon within the Cygnus region with the SOFIA observatory provides evidence for dynamic interactions between molecular clouds and their atomic envelopes, which trace out the assembly process of cloud complexes.

    • Nicola Schneider
    • Lars Bonne
    • Alexander G.G.M. Tielens
    ArticleOpen Access
  • Forty-year monitoring of Jupiter reveals long-term oscillations and teleconnections across the north–south hemispheres and upper–lower atmospheres. This discovery has important implications for the atmospheres of exoplanets and brown dwarfs.

    • Xi Zhang
    News & Views
  • A state-of-the-art machine-learning method combs a 480-h-long dataset of 820 nearby stars from the SETI Breakthrough Listen project, reducing the number of interesting signals by two orders of magnitude. Further visual inspection identifies eight promising signals of interest from different stars that warrant further observations.

    • Peter Xiangyuan Ma
    • Cherry Ng
    • S. Pete Worden
    Article
  • The transformations of energy that accompany solar magnetic activity have far-reaching ramifications beyond heliophysics. Understanding the dynamical chain is fundamental to assess habitability and the capacity for life elsewhere.

    • Marco Velli
    News & Views
  • 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?

    Editorial
  • Using JWST, the molecules seen in planetary atmospheres can be traced back to their cold origins in ices formed in dense interstellar clouds, before the onset of star formation, revealing that chemical diversity and complexity is achieved early.

    • M. K. McClure
    • W. R. M. Rocha
    • H. Linnartz
    Article
  • Analysis of a large galaxy sample shows that black hole activity is greater in galaxies in which the stellar and gas kinematics are misaligned. This observation suggests that the misalignment, driven by external gas accretion, fuels the central supermassive black holes.

    • Sandra I. Raimundo
    • Matthew Malkan
    • Marianne Vestergaard
    Article