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Astrophysics

Astronomy

JWST scouts incredibly old galaxies, from when the universe was just a baby

Astrophysics

Did the James Webb Space Telescope just redefine how galaxies are created?

February 23, 2023

Astrophysics

Mysterious, unpredictable, and dangerous astronomical event studied through tree rings

October 26, 2022

Astrophysics

Astrophysicists are stunned to see a black hole “burping” several years after having a meal

August 31, 2023

This artist’s impression shows the planet orbiting the Sun-like star HD 85512 in the southern constellation of Vela (The Sail). This planet is one of sixteen super-Earths discovered by the HARPS instrument on the 3.6-metre telescope at ESO’s La Silla Observatory. This planet is about 3.6 times as massive as the Earth lis at the edge of the habitable zone around the star, where liquid water, and perhaps even life, could potentially exist.

Astronomy

Exoplanets rich in Hydrogen and Helium could be habitable for billions of years

Astrophysics

Lava-covered super-Earth and airless hot rocky are James Webb’s next targets

Astrophysics

Astronomers discover micronova explosions

Astronomy

How the cosmic web makes and breaks the formation of new stars

Astronomy

The journey of galaxy clusters in billions of years

February 12, 2022

Astronomy

Hubble spots black hole “giving birth” to new star

January 24, 2022

Astrophysics

Water is sublimating on the surface of Europa — at ungodly low temperatures

October 19, 2021

Astronomy

A universe in a bottle: why simulating everything there is is so important

September 21, 2021

An artist's rendition of the asteroid 2021 PH27 i inside Mercury's orbit. (CTIO/NOIRLab/NSF/AURA/J. da Silva)

Astronomy

Astronomers discover the fastest orbiting asteroid

August 24, 2021

Features

What is gravitational lensing — and how it helped prove Einstein right

Astronomy

InSight maps Mars’ composition and chunky core for the first time

September 21, 2023

ESO / L. Calçada

Astronomy

Neutron Stars Make Ant Hills Out of Mountains

Artist's view of a black hole-neutron star merger. (Carl Knox, OzGrav - Swinburne University)

Astronomy

Neutron Star and Black Hole’s Final Dance Observed for the First Time

Astronomy

Scientists peer back in time to find the birth of the first stars

Astrophysics

What if the Earth was made of blueberries?

December 16, 2022

These images, taken with the SPHERE instrument on ESO’s Very Large Telescope, show the surface of the red supergiant star Betelgeuse during its unprecedented dimming, which happened in late 2019 and early 2020. The image on the far left, taken in January 2019, shows the star at its normal brightness, while the remaining images, from December 2019, January 2020 and March 2020, were all taken when the star’s brightness had noticeably dropped, especially in its southern region. The brightness returned to normal in April 2020. (ESO/M. Montargès et al)

Astronomy

Astronomers Solve the Mystery of Betelgeuse’s ‘Great Dimming’

Astronomers have spotted a giant 'blinking' star towards the centre of the Milky Way, more than 25,000 light years away. An international team of astronomers observed the star, VVV-WIT-08, decreasing in brightness by a factor of 30, so that it nearly disappeared from the sky. While many stars change in brightness because they pulsate or are eclipsed by another star in a binary system, it's exceptionally rare for a star to become fainter over a period of several months and then brighten again. (Amanda Smith, University of Cambridge)

Astronomy

Blinking Giant Star is a Mystery at the Heart of the Milky Way

Astronomy

Galactic neighbourhoods have an influence on stellar nurseries

Astronomy

Chandra X-ray and MeerKAT data reveal a busy galactic center

Ten areas in the sky were selected as “deep fields” that the Dark Energy Camera imaged several times during the survey, providing a glimpse of distant galaxies and helping determine their 3D distribution in the cosmos.

Astronomy

Astronomers map over 100 million galaxies to crack dark matter and dark energy puzzle

This image features a comet located in the outer reaches of the Solar System: comet C/2016 R2 (PANSTARRS). (ESO/SPECULOOS Team/E. Jehin)

Astronomy

Comets have a heavy metal atmosphere

Astrophysics

Magnetic field readings point to the structure of Saturn’s interior

Astrophysics

Uranus is leaking radiation, researchers say

This image shows an artist’s impression of what the surface of the 2I/Borisov comet might look like. 2I/Borisov was a visitor from another planetary system that passed by our Sun in 2019, allowing astronomers a unique view of an interstellar comet. While telescopes on Earth and in space captured images of this comet, we don’t have any close-up observations of 2I/Borisov. It is therefore up to artists to create their own ideas of what the comet’s surface might look like, based on the scientific information we have about it. (SO/M. Kormesser)

Astronomy

Interstellar visitor 2I/Borisov is the most pristine comet ever observed

The Event Horizon Telescope (EHT) collaboration, who produced the first ever image of a black hole released in 2019, has today a new view of the massive object at the centre of the Messier 87 (M87) galaxy: how it looks in polarised light. This is the first time astronomers have been able to measure polarisation, a signature of magnetic fields, this close to the edge of a black hole. (EHT Collaboration)

Astronomy

Black Hole Seen Clearly in Historic New Direct Image

This image shows an artist’s impression of winds in Jupiter’s stratosphere near the planet’s south pole, with the blue lines representing wind speeds. These lines are superimposed on a real image of Jupiter, taken by the JunoCam imager aboard NASA’s Juno spacecraft. Jupiter’s famous bands of clouds are located in the lower atmosphere, where winds have previously been measured. But tracking winds right above this atmospheric layer, in the stratosphere, is much harder since no clouds exist there. By analysing the aftermath of a comet collision from the 1990s and using the ALMA telescope, in which ESO is a partner, researchers have been able to reveal incredibly powerful stratospheric winds, with speeds of up to 1450 kilometres an hour, near Jupiter’s poles.

Astronomy

Jupiter’s Supersonic Stratospheric Winds Make it a Unique Beast

Space

Low frequency sky map reveals an archive of supermassive black holes

Artist’s Impression of GJ 1132 b

Astronomy

The Exoplanet that grew a second atmosphere

This artist’s impression shows how the distant quasar P172+18 and its radio jets may have looked. To date (early 2021), this is the most distant quasar with radio jets ever found and it was studied with the help of ESO’s Very Large Telescope. It is so distant that light from it has travelled for about 13 billion years to reach us: we see it as it was when the Universe was only about 780 million years old. (ESO)

Astronomy

Astronomers have discovered the most distant radio signal ever

Astrophysics

Mars’ two moons used to be a single moon, says new research

February 23, 2021

Astronomy

Massive Black Hole Could Challenge Stellar Evolution Theories

This artist’s impression shows the view from the planet in the TOI-178 system found orbiting furthest from the star. New research by Adrien Leleu and his colleagues with several telescopes, including ESO’s Very Large Telescope, has revealed that the system boasts six exoplanets and that all but the one closest to the star are locked in a rare rhythm as they move in their orbits. But while the orbital motion in this system is in harmony, the physical properties of the planets are more disorderly, with significant variations in density from planet to planet. This contrast challenges astronomers’ understanding of how planets form and evolve. This artist’s impression is based on the known physical parameters for the planets and the star seen, and uses a vast database of objects in the Universe. (ESO/L. Calçada/spaceengine.org)

Astronomy

Astronomers discover an exoplanet system with rhythm

January 25, 2021

Astronomy

Space and Physics Developments to Look Forward to in 2021

Original images ESO/Y. Beletsky/ ESO/M. Kornmesser. adjusted by Robert Lea

Astronomy

Astronomers witness the ‘death’ of a galaxy

January 11, 2021

Baby universes branching off of our universe shortly after the Big Bang appear to us as black holes. (Kavli IPMU)

Astronomy

Primordial black holes could hide a multiverse of possibilities

January 6, 2021

Astronomy

2020: A Year in Space

This artist’s illustration represents the couple of planetary-mass brown dwarfs Ophiuchus 98. As they are very young, they are still evolving in the molecular clouds that saw their birth.

Astronomy

Astronomers find two failed stars wandering the universe together

December 17, 2020

Astrophysics

Historic neutrino detection shines new light on the sun

December 2, 2020

Astronomy

Ancient Kraken hiding inside the Milky Way gets revealed by artificial intelligence

November 16, 2020

Mars then and Now. The Red Planet has been stripped of water for billions of years, but the main mechanism of water loss is different now than it was a billion years ago (NASA)

Alien life

Water stripped from Mars’ upper atmosphere may explain how it became a barren Red Planet

November 12, 2020

An artist's conception of HD 209458 b, an exoplanet whose atmosphere is being torn off at more than 35,000 km/hour by the radiation of its close-by parent star. This hot Jupiter was the first alien world discovered via the transit method, and the first planet to have its atmosphere studied. [NASA/European Space Agency/Alfred Vidal-Madjar (Institut d'Astrophysique de Paris, CNRS)]

Alien life

Stellar flares can strip away the atmosphere of planets, make them less habitable

November 9, 2020

An artist's impression of a gravitational microlensing event by a free-floating planet. (Jan Skowron / Astronomical Observatory, University of Warsaw)

Astronomy

‘Lonely’ Rogue Planet Discovered Wandering the Milky Way

November 3, 2020

Astronomy

Water Found on the Moon’s Sunlit Surface

October 26, 2020

With the help of ESO’s Very Large Telescope (VLT), astronomers have found six galaxies lying around a supermassive black hole, the first time such a close grouping has been seen within the first billion years of the Universe. This artist’s impression shows the central black hole and the galaxies trapped in its gas web. The black hole, which together with the disc around it is known as quasar SDSS J103027.09+052455.0, shines brightly as it engulfs matter around it. (ESO/L. Calçada)

Astronomy

‘Cosmic Web’ of a Supermassive Black Hole Ensnares Six Galaxies

August 31, 2023

Astronomy

This could be the first extragalactic planet we’ve ever found

September 30, 2020

Astrophysics

How much matter is there in the universe? Now we (kind of) know

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