Astronomy & Astrophysics

Featured image: Simulation of magnetic instability in red giant cores (Meduri, D. G., et al., 2025, A&A, 702, A44)
www.aanda.org/component/is...

INSU press release: Detection of a complex magnetic field on the surface of the intermediate-mass star Vega
www.insu.cnrs.fr/sites/instit...

Article by Böhm et al.: www.aanda.org/10.1051/0004...

ALMA pinpoints the radio signature of planetary growth | ALMA Observatory New multi-frequency observations reveal that the growing giant planet PDS 70c shines in radio waves not from dust, but from ionized gas in its environment. Highlights Astronomers using the Atacama Lar...

ALMA press release: ALMA pinpoints the radio signature of a planetary growth
www.almaobservatory.org/en/press-rel...

Article by Domínguez-Jamett et al.: www.aanda.org/10.1051/0004...

Featured image: ALMA imaging and spectrum of protoplanet PDS70c (Domínguez-Jamett. O., et al., 2025, A&A, 702, A18)
www.aanda.org/component/is...

Gaia discovers our galaxy’s great wave Our Milky Way galaxy never sits still: it rotates and wobbles. And now, data from the European Space Agency’s Gaia space telescope reveal that our galaxy also has a giant wave rippling outwards from i...

ESA press release: Gaia discovers our Galaxy's great wave
www.esa.int/Science_Expl...

Article by Poggio et al.: www.aanda.org/10.1051/0004...

Dublin Univ. press release: Northern Lights feature in today’s weather report… from a rogue planet
www.tcd.ie/news_events/...

Article by Nasedkin et al.: www.aanda.org/10.1051/0004...

Clarivate has corrected A&A’s @aanda-journal.bsky.social Impact Factor from 5.8 to 6.1, after missing citations from the Gaia DR3 article were identified.

As A&A’s publisher, we welcome this update, but real impact goes beyond metrics.

bit.ly/3IehV5r

New EHT Images Reveal Unexpected Polarization Flips at M87* | Event Horizon Telescope

EHT press release: New EHT Images Reveal Unexpected Polarization Flips at M87*
eventhorizontelescope.org/new-eht-imag...

Article by The Event Horizon Telescope Collaboration: www.aanda.org/10.1051/0004...

“Black Hole Stars” could solve JWST riddle of overly massive early galaxies A newly discovered distant object that astronomers have dubbed “The Cliff” could solve a riddle posed by some of the first observations of the distant universe with the James Webb Space Telescope, rel...

MPIA press release: “Black Hole Stars” could solve JWST riddle of overly massive early galaxie
www.mpia.de/news/science...

Article by de Graaff et al. www.aanda.org/10.1051/0004...

UNIGE press release: The ATREIDES program in search of lost exo-Neptunes www.unige.ch/medias/en/20...

Article by Bourrier et al.: www.aanda.org/10.1051/0004...

Extended Application Deadline: Call for New Associate Editors

The Executive Committee of Astronomy & Astrophysics has extended the deadline for the applications for two new Associate Editor positions to 1 October 2025.

see details here: www.aanda.org/2025-press-r...

Solar Orbiter traces superfast electrons back to Sun A newly published study led by AIP presents a comprehensive catalogue of solar energetic electron events and shows that the apparent delay between solar eruptions and the detection of electrons in spa

AIP and ESA press release: Solar Orbiter traces superfast electrons back to Sun
www.aip.de/news/solar-o...

www.esa.int/Science_Expl...

Article by Warmuth et al.: www.aanda.org/10.1051/0004...

Featured image: 20 expanding x-ray rings measure interstellar dust (Sneppen, A., et al., 2025, A&A, 701, A65)
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INAF press release: Calvera exploded where it shouldn't have
www.inaf.it/en/inaf-news...

Article by Greco et al. www.aanda.org/10.1051/0004...

Featured image: X-rays from hot ISM in the LMC, as seen by eROSITA (Mayer, M. G. F., et al., 2025, A&A, 700, A137)
www.aanda.org/component/is...

Unusual carbon dioxide-rich disk detected around young star challenges planet formation models - Stockholm University A study led by Jenny Frediani at Stockholm University has revealed a planet-forming disk with a strikingly unusual chemical composition: an unexpectedly high abundance of carbon dioxide (CO₂) in regio...

Stockholm Univ. press release: Unusual carbon dioxide-rich disk detected around young star challenges planet formation models
www.su.se/english/news...

Article by Frediani et al.: www.aanda.org/10.1051/0004...

Featured image: VLBA jet from blazar PKS 1424+240 aimed at Earth (Kovalev, Y. Y., et al., 2025, A&A, 700, L12)
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Astronomers Spot the “Eye of Sauron” in Deep Space

MPIfR press release: Astronomers Spot the “Eye of Sauron” in Deep Space
www.mpifr-bonn.mpg.de/pressrelease...

Article by Kovalev et al.: www.aanda.org/10.1051/0004...

Featured image: NGC 253 color images extracted from MUSE data (Congiu, E., et al., 2025, A&A, 700, A125)
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Astronomers capture most detailed thousand-colour image of a galaxy Astronomers have created a galactic masterpiece: an ultra-detailed image that reveals previously unseen features in the Sculptor Galaxy. Using the European Southern Observatory’s Very Large Telescope ...

ESO press release: Astronomers capture most detailed thousand-colour image of a galaxy
www.eso.org/public/news/...

Article by Congiu et al.: www.aanda.org/10.1051/0004...

Heidelberg Univ press release: OJ 287: New Image from the Heart of a Mysterious Galaxy
www.uni-heidelberg.de/en/newsroom/...

Article by Traianou et al.: www.aanda.org/10.1051/0004...

Montreal Univ., Geneva Univ., IA press releases: The NIRPS instrument: a new eye on the sky in Chile

www.unige.ch/medias/en/20...
exoplanetes.umontreal.ca/en/?p=24496&...
divulgacao.iastro.pt/en/2025/07/2...

Articles published in A&A, vol. 700: www.aanda.org/2025-press-r...

Highlight: Experimental confirmation of barrierless reactions between HeH+ and deuterium atoms suggests a lower abundance of the first molecules at very high redshifts
by F. Grussie, J. Sahoo, Y. Scribano, et al. 2025, A&A, 699, L12

www.aanda.org/2025-highlig...

Astronomers witness newborn planet sculpting the dust around it Astronomers may have caught a still-forming planet in action, carving out an intricate pattern in the gas and dust that surrounds its young host star. Using ESO’s Very Large Telescope (VLT), they obse...

ESO press release: Astronomers witness newborn planet sculpting the dust around it
www.eso.org/public/news/...

Article by Maio et al.: www.aanda.org/10.1051/0004...

Featured image: The Crab Nebula at 145 MHz and subarcsecond resolution (Arias, M., et al., 2025, A&A, 699, A319)
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Highlight: The Crab Nebula at sub-arcsecond resolution with the International LOFAR Telescope
by M. Arias, R. Timmerman, F. Sweijen, R.J. van Weeren, C.G. Bassa 2025, A&A, 699, A319
www.aanda.org/2025-highlig...

Featured image: Evolution of stars and dark matter in cosmological simulations (Pascale, R., et al., 2025, A&A, 699, A31)
www.aanda.org/component/is...

Space’s Spinning Enigma: A ‘Unicorn’ Object Defies Astrophysics - National Radio Astronomy Observatory Astronomers have made a groundbreaking discovery using some of the world’s most advanced radio telescopes. Researchers, led by Fengqiu Adam Dong, a Jansky Fellow at the NSF Green Bank Observatory (NSF...

NRAO & ASTRON press release: Astronomers uncover white dwarf system emitting bright radio pulses with strange rhythm
public.nrao.edu/news/unicorn...

www.astron.nl/astronomers-...

Article by Bloot et al.: www.aanda.org/10.1051/0004...

Featured image: Modeling SN 1987A’s evolution over five millennia (Orlando, S., et al., 2025, A&A, 699, A305)
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Highlight: Tracing the ejecta structure of supernova 1987A: Insights and diagnostics from 3D magnetohydrodynamic simulations
by S. Orlando et al. 2025, A&A, 699, A305
www.aanda.org/2025-highlig...