2021 Press releases

How to weigh an invisible object?

A gigantic lane made of raw material for new stars

ESPRESSO puts the physical constants to the test

The Birth of Stars

Solar Orbiter publishes a wealth of science results from its cruise phase

Watch stars move around the Milky Way’s supermassive black hole in deepest images yet

From Dawn till Dusk

Multiwavelenght snapshot of a repeating fast radio burst

Astronomers observe final missing piece of galaxy cluster collision stages

ESO telescope uncovers closest pair of supermassive black holes yet

New perspectives on the problem of galaxies without dark matter

Discovering exoplanets using artificial intelligence

ALMA view on the stellar-merger site in V838 Monocerotis

Tidying up planetary nurseries

SPECFIND V3.0 catalog release

The upside-down orbits of a multi-planetary system

A superstructure harboring massive galaxies in formation

Open Access Transformation for Astronomy & Astrophysics

With the continued support of subscribers, Astronomy & Astrophysics (A&A) journal will be published open access in 2022 under a Subscribe-to-Open model.


Meet the 42: ESO images some of the biggest asteroids in our Solar System

ESO captures best images yet of peculiar “dog-bone” asteroid

Unravelling the mystery of brown dwarfs

Based on the article "Populating the brown dwarf and stellar boundary: Five stars with transiting companions near the hydrogen-burning mass limit", by

Published in Astronomy & Astrophysics, 2021, 652, A127

Like star, like planet

Based on the article "Why do more massive stars host larger planets?", by

Published in Astronomy & Astrophysics, 2021, 652, A110

Most detailed-ever images of galaxies revealed using LOFAR

Astronomers show how planets form in binary systems without getting crushed

Credit: ESO/L. Calçada/N. Risinger

Based on the article "Planet formation in stellar binaries: Global simulations of planetesimal growth", by

Published in Astronomy & Astrophysics, 2021, 652, A104

New ESO observations show rocky exoplanet has just half the mass of Venus

Credit: ESO/L. Calçada/M. Kornmesser

Based on the article "Warm terrestrial planet with half the mass of Venus transiting a nearby star", by

To be published in Astronomy & Astrophysics

Gaia draws a new map of the Galactic spiral structure

Quiet solar storm named after International Women’s Day

GLOSTAR - tracing atomic and molecular gas in the Milky Way – Two powerful telescopes provide the most detailed radio maps of the Northern Galactic Plane

Based on the articles

"A global view on star formation: The GLOSTAR Galactic plane survey - I. Overview and first results for the Galactic longitude range 28° < l < 36°", by A. Brunthaler et al.

and "A global view on star formation: The GLOSTAR Galactic plane survey - II. Supernova remnants in the first quadrant of the Milky Way", by R. Dokara et al.

and "A global view on star formation: the GLOSTAR Galactic plane survey - III. 6.7 GHz methanol maser survey in Cygnus X", by G. N. Ortiz-Leon et al.

and "A global view on star formation: The GLOSTAR Galactic plane survey - IV. Radio continuum detections of young stellar objects in the Galactic Centre region", by H. Nguyen et al.

Published in Astronomy & Astrophysics, 2021, 651, A85, A86, A87, A88

Long-period oscillations of the Sun discovered

ExoMars orbiter continues hunt for key signs of life on Mars

uGMRT uncovers the signature of a cannon ball fired from the Sun, using pulsars!

New sunspot catalogue to improve space weather predictions

First You See It, Then You Don’t: Scientists Closer to Explaining Mars Methane Mystery

An appetizer to the all-sky banquet: First eROSITA X-ray data now released to the public

2021 A&A Awards: and the winners are...

The two winners of the first edition of the A&A awards for individuals in the initial stages of their careers were announced at the annual meeting of the European Astronomical Society.


Unique use of ESA spacecraft housekeeping data reveals cosmic ray behaviour

Dark matter: 'real stuff' or gravity misunderstood?

Solar Mission Reveals New Details About Venus’ Unusual Magnetic Field

Holes in the solar atmosphere: artificial intelligence spots coronal holes to automate space weather prediction

Parker Solar Probe Ushers in New Science on the Sun and Solar Wind

The newborn black hole in GRB 191014C proves that it is alive

Chandra Discoveries in 3D Available on New Platform

New model can predict carbon cycle presence on exoplanets

‘Campfires’ offer clue to solar heating mystery

Giant planet at large distance from sun-like star puzzles astronomers

Black holes like to eat, but have a variety of table manners

Long-awaited review reveals journey of water from interstellar clouds to habitable worlds

Ultra-sensitive radio images reveal thousands of star-forming galaxies in early Universe

Is the nearest star cluster to the Sun being destroyed?

First images of the cosmic web reveal a myriad of unsuspected dwarf galaxies

Powerful stratospheric winds measured on Jupiter for the first time

Surface brightness fluctuations and Supernovae Ia to unveil the expansion of the Universe

The best place and time to live in the Milky Way

Hunt for the signature of the first moments of the Universe just got more complicated

Hoinga: The largest supernova remnant ever discovered with X-rays

Sudden Death in the Universe - The agony of a massive dusty galaxy as seen by its blue companion

Hubble Uncovers Concentration of Small Black Holes

Evidence for substance on liquid-gas boundary on exoplanet WASP-31b

Peering inside the birthplaces of planets orbiting the smallest stars

New galaxy sheds light on how stars form

The dance of massive stellar couples

A study of the radio emission of Proxima Centauri opens a new path for the detection and study of exoplanets