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A neutron star candidate in a close binary has been discovered using a radial velocity method and characterized with a variety of ground- and space-based telescopes. The system probably represents an underexplored population of non-accreting and/or non-beaming neutron stars.
The extraction of the wind pattern, vorticity and divergence down to a scale of 200 km from the cluster of cyclones at Jupiter’s north pole shows evidence of an anticyclonic ring, which is needed to keep the system stable, around the central cyclone. No signatures of convection are observed at 200 km scales.
Benchmark testing of many opacity models of exoplanetary transmission spectra, simulating representative spectra to be obtained with the James Webb Space Telescope, highlights the presence of biases that would significantly reduce the accuracy on the retrieval of atmospheric parameters. Mitigation strategies are presented.
Mars hosted hundreds of lakes, most of which formed earlier than 3.7 billion years ago and lasted only a limited amount of time. This overview of their characteristics and mineralogy highlights the importance of the Martian lakes as a record of ancient climate and potential for biogenesis.
Black-hole activity feedback is intensively studied on both galaxy-cluster scales and parsec scales. There are, however, many open questions about how the close surroundings of supermassive black holes affect large-scale structure and vice versa.
Our Collection on dwarf galaxies brings together a series of articles that showcase the breadth of research in this field, with links to galaxy formation and evolution, cosmology, dark matter and the interstellar medium.
Writing a good scientific paper is a challenging task that benefits from training and practice. In this second Perspective in a short series, the authors share their wisdom on the process of writing a manuscript, from the most appropriate content for each section to the language to use.
Writing a good scientific paper is a challenging task that becomes easier with training and practice. Here the authors share their wisdom on useful preparations to make before starting to write, and a companion Perspective provides advice on the actual writing process.
A bright patch in the Fermi bubbles, previously attributed to a jet launched by the Galaxy’s central black hole, is actually due to gamma-ray emission by millisecond pulsars in a background, satellite galaxy of the Milky Way.
A close look at microcraters on a lunar grain from a Chang’e-5 returned sample shows evidence of the formation of nanophase metallic iron (np-Fe0) via disproportionation of Fe2+ triggered by secondary impacts, with no space weathering contribution from the solar wind.
About 0.5% by volume of the Ryugu particle C0009 is made up of anhydrous silicates, mostly olivines, despite the extensive aqueous alteration of its parent body. Such aggregates, rich in 16O, were present in Ryugu’s protolith and survived fluid activity.
Light pollution is a growing problem affecting the night sky. This Review takes a comprehensive look at the factors contributing to elevated brightness at night, the measurement techniques and the ongoing assessment of sky quality.
A new selection method is used to obtain a sample of dual/lensed active galactic nuclei (AGN) candidates with sub-arcsec separations from Gaia data. This substantially increases the known number of dual AGNs, with implications for studies of in-spiralling supermassive black holes.