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  • In its second extended mission at Ceres, the Dawn spacecraft returned a harvest of high-resolution data on the intriguing Occator crater, a landmark for understanding the role of impacts in shaping ice-rich bodies, explain Project Scientist Julie Castillo-Rogez and Chief Engineer Marc Rayman.

    • Julie C. Castillo-Rogez
    • Marc D. Rayman
    Mission Control
  • Staff across 74 UK universities are striking because pay and working conditions are eroding, and changes to the pension scheme mean that workers fear they are paying in more money for fewer benefits without good reason. More clarity is needed.

    Editorial
  • A cost-efficient overhaul of the 50-year-old Molonglo radio telescope will equip it as a standalone fast radio burst detector and localizer, explain Adam Deller and Chris Flynn.

    • Adam Deller
    • Chris Flynn
    Mission Control
  • The support of the international astronomical community to the 2030 Agenda for Sustainable Development is fundamental to advance the rights and needs of the most vulnerable groups of our global society. Among these groups are the refugees.

    • Sandra Benítez Herrera
    • Jorge Rivero González
    Comment
  • The Spitzer Space Telescope may be modest in size compared to its optical counterparts, but the low temperatures of its optics gave its infrared instruments excellent sensitivity, explains Facility Scientist Thomas Roellig.

    • Thomas L. Roellig
    Mission Control
  • Growing evidence suggests that synchrotron radiation plays a significant role in shaping the spectra of most γ-ray bursts. The relativistic jets producing them are likely to carry a significant fraction of energy in the form of a Poynting flux.

    • Bing Zhang
    Comment
  • The recent disclosure regarding possible biological consequences of the Beresheet hard landing on the Moon raises concerns relating to planetary protection policies. Here we analyse legal and regulatory aspects of the landing of tardigrades and other biological material on the Moon and suggest possible ways to manage challenges arising therefrom.

    • Keren Shahar
    • Dov Greenbaum
    Comment
  • The recent suite of ground and space observatories bring solar physics into the twenty-first century. Solar Orbiter, due to launch this month, will observe the polar regions from up close, which is essential for understanding the magnetic field of the Sun.

    Editorial
  • Michael Werner, project scientist of the Spitzer Space Telescope and emeritus chief scientist for astronomy and physics at the Jet Propulsion Laboratory, discusses the legacy of one of NASA’s Great Observatories.

    • Paul Woods
    Q&A