#einstein-ring — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #einstein-ring, aggregated by home.social.
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#PhotoOfTheDay: Spying a spiral through a cosmic lens
This James Webb Space Telescope photo features a rare cosmic phenomenon called an #EinsteinRing. What at first appears to be a single, strangely shaped galaxy is actually two galaxies that are separated by a large distance.
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Einstein ring
In this image from the James Webb Telescope what appears to be a single galaxy is actually two that are very far apart. The closer galaxy lies in the center of the image, while the more distant galaxy appears to be wrapped around it in a phenomenon we call an “Einstein ring.” Einstein rings occur when light from a distant galaxy gets bent by the gravity of a massive closer-by object, in this case another galaxy.
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Using a rare Einstein ring and the power of global radio telescopes, scientists caught the invisible substance bending space itself. https://english.mathrubhumi.com/technology/science/dark-matter-clump-einstein-ring-discovery-tadz78c0?utm_source=dlvr.it&utm_medium=mastodon #DarkMatter #SpaceDiscovery #EinsteinRing #Astrophysics #ScienceNews
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#Astronomers Uncover Possibly the Largest #BlackHole: It ‘Bends Light Into a Giant #EinsteinRing’ - Good News Network
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Astronomen entdecken schwerstes Schwarzes Loch. In einem Einsteinring verborgener Schwerkraftgigant wiegt 36 Milliarden Sonnenmassen. #SchwarzesLoch #Einsteinring #Astronomie #CosmicHorseshoe
https://www.scinexx.de/news/kosmos/astronomen-entdecken-schwerstes-schwarzes-loch/ -
Galaxy Einstein ring: Lovely astronomy image of two galaxies, one lensing the other
https://www.esa.int/ESA_Multimedia/Images/2025/03/Webb_spies_a_spiral_through_a_cosmic_lens
#astrophotography #via:hackernews #einsteinring #astronomy #galaxy #space #+ -
🚀🛑 Behold, the Webb telescope's latest cosmic discovery: a 400 Bad Request! Who needs a dramatic Einstein ring when you can marvel at the cutting-edge technology of server error screens? Please contact our support team for more stellar revelations. 😂✨
https://phys.org/news/2025-04-einstein-webb.html #WebbTelescope #CosmicDiscovery #ServerError #TechHumor #EinsteinRing #400BadRequest #HackerNews #ngated -
A dramatic Einstein ring seen by Webb
https://phys.org/news/2025-04-einstein-webb.html
#HackerNews #EinsteinRing #Webb #Telescope #Astronomy #SpaceNews #CosmicPhenomena
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Webb Captures Gorgeous Photo of ‘Einstein Ring’ https://petapixel.com/2025/04/01/webb-captures-gorgeous-photo-of-einstein-ring/ #jameswebbspacetelescope #spacetelescope #einsteinring #astronomy #science #euclid #Space #space #News #jwst #NASA #webb #csa #esa
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#Webb Captures a Perfect #EinsteinRing That Reveals a Hidden #Galaxy
https://scitechdaily.com/webb-captures-a-perfect-einstein-ring-that-reveals-a-hidden-galaxy/
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#Euclid #telescope captures #EinsteinRing revealing warping of #space, showing light from a distant #galaxy bent into a perfect circle by the gravity of another galaxy sitting between Earth and the source, #ESA said.
Phenomenon, spotted around galaxy #NGC6505 some 590M light-years from Earth, reveals the warping of space predicted by Einstein's theory of relativity. The background galaxy, located 4.42B light-years away, appears as a complete ring of light around NGC 6505.
https://www.theguardian.com/science/2025/feb/10/euclid-telescope-captures-einstein-ring-revealing-warping-of-space -
🚀 Wow, an Einstein Ring was found! What’s next? Proving the Earth is round? The Euclid mission is clearly on an INTENSE journey through space, bravely going where every first-year #astrophysics student has gone before. 🪐🔭
https://www.euclid-ec.org/einstein-ring-in-ngc-6505/ #EinsteinRing #EuclidMission #SpaceExploration #AstronomyNews #HackerNews #ngated -
Euclid finds complete Einstein Ring in NGC galaxy — https://www.euclid-ec.org/einstein-ring-in-ngc-6505/
#HackerNews #Euclid #EinsteinRing #NGC6505 #Astronomy #SpaceScience #CosmicDiscovery -
#EinsteinRing Surrounds Nearby #Galaxy Center
#Astronomy #Picture of the Day
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Einstein Ring Surrounds Nearby Galaxy Center
Do you see the ring? If you look very closely at the center of the featured galaxy NGC 6505, a ring becomes evident. It is the gravity of NGC 6505, the nearby (z = 0.042) elliptical galaxy that you can easily see, that is magnifying and distorting the image of a distant galaxy into a complete circle.
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#astronomy #galaxy #NGC6505 #ESA #Euclid #EinsteinRing
An article published in the journal "Astronomy & Astrophysics" reports the identification of a practically perfect so-called Einstein ring around the galaxy NGC 6505. A team of researchers Conor led by O’Riordan examined observations conducted with the Euclid space telescope to study the image of a much more distant galaxy distorted by the gravitational lens created by NGC 6505.
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Astronomen entdecken spektakulären Einsteinring. Euclid-Raumsonde findet Lichtring einer ungewöhnlich nahen und starken Gravitationslinse. #Einsteinring #Astronomie #Gravitationslinse #Galaxie
https://www.scinexx.de/news/kosmos/astronomen-entdecken-spektakulaeren-einsteinring/ -
600-Megapixel Euclid Telescope Captures ‘Einstein Ring’ Encircling Nearby Galaxy https://petapixel.com/2025/02/10/600-megapixel-euclid-telescope-captures-einstein-ring-encircling-nearby-galaxy/ #euclidspacetelescope #einsteinring #darkmatter #gravity #science #euclid #galaxy #Space #space #News #NASA #esa
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#Euclid #telescope captures #EinsteinRing revealing #warping of #space | #EuropeanSpaceAgency | The Guardian
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The Einstein Ring photo by the Euclid Space telescope showing Gravitational Lensing is stunning! Not only is it wild that we're seeing a galaxy directly behind another one (literally seeing around a wall instead of through it), the shape is also common down here on Earth. It looks exactly like a Sundog rotated to the right by an "hour".
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Euclid - a complete Einstein ring in NGC 6505: https://www.aanda.org/articles/aa/full_html/2025/02/aa53014-24/aa53014-24.html -> Euclid discovers a stunning Einstein ring / Euclid finds complete #EinsteinRing in NGC galaxy / Euclid Discovers Einstein Ring in Our Cosmic Backyard: https://www.esa.int/Science_Exploration/Space_Science/Euclid/Euclid_discovers_a_stunning_Einstein_ring / https://www.euclid-ec.org/einstein-ring-in-ngc-6505/ / https://www.nasa.gov/universe/euclid-discovers-einstein-ring-in-our-cosmic-backyard/
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Extremely rare ‘#Einsteinring’ discovered close to #Earth
The #Euclid #space #telescope’s findings support a #cosmic phenomenon first predicted by #AlbertEinstein
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"The Einstein Ring, an extremely rare phenomenon, turned out to be hiding in plain sight in a galaxy not far away. The galaxy, called NGC 6505, is around 590 million light-years from Earth, a stone's throw away in cosmic terms. But this is the first time that the ring of light surrounding its center is detected, thanks to Euclid's high-resolution instruments.,"
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[Un anneau parfait ...] L'analyse des tous premiers clichés acquis par le #télescope spatial #Euclid a révélé cet anneau d'Einstein parfaitement circulaire. Exceptionnel ! Rarissime !
Cet anneau encercle une #galaxie (NGC 6505) située à quelque 590 millions d'années lumière de la Terre. Il est constitué de la #lumière provenant d'une galaxie plus lointaine et brillante - une galaxie jusque là inconnue, distante de 4,42 milliards d'années lumière. Info+ : https://www.esa.int/Science_Exploration/Space_Science/Euclid/Euclid_discovers_a_stunning_Einstein_ring
Cette galaxie est donc la toute première découverte de la mission @ec_euclid ! 👏 Une découverte qui en augure bien d'autres ... Good luck, Euclid !
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Euclid finds an Einstein Ring
What better way to start a cold February morning than with a lovely image from Euclid? The picture above on the left shows an image of the galaxy NGC 6505 and on the right a closer view of the central portion that reveals a near perfect Einstein Ring. This phenomenon is caused by gravitational lensing and is quite a rare occurrence because it requires a perfect alignment between a background source, a concentration of mass that acts as a lens, and the observer (in this case the Euclid telescope):
This find is all the more extraordinary because it was made using observations made during Euclid’s commissioning phase when the telescope was not yet fully focussed. The first release of (a small sample) of full-quality data from Euclid – the so-called Q1 release – will actually be announced next month.
The published paper by O’Riordan et al is available here, from which I have taken this image showing the two relationship between the two images above:
There has already been quite a lot of media coverage of this discovery (even in Ireland). Here is the Press Release from the European Space Agency explaining the background and some comments from people involved in the work:
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Euclid blasted off on its six-year mission to explore the dark Universe on 1 July 2023. Before the spacecraft could begin its survey, the team of scientists and engineers on Earth had to make sure everything was working properly. During this early testing phase, in September 2023, Euclid sent some images back to Earth. They were deliberately out of focus, but in one fuzzy image Euclid Archive Scientist Bruno Altieri saw a hint of a very special phenomenon and decided to take a closer look.
“I look at the data from Euclid as it comes in,” explains Bruno. “Even from that first observation, I could see it, but after Euclid made more observations of the area, we could see a perfect Einstein ring. For me, with a lifelong interest in gravitational lensing, that was amazing.”
The Einstein Ring, an extremely rare phenomenon, turned out to be hiding in plain sight in a galaxy not far away. The galaxy, called NGC 6505, is around 590 million light-years from Earth, a stone’s throw away in cosmic terms. But this is the first time that the ring of light surrounding its centre is detected, thanks to Euclid’s high-resolution instruments.
The ring around the foreground galaxy is made up of light from a farther out bright galaxy. This background galaxy is 4.42 billion light-years away, and its light has been distorted by gravity on its way to us. The far-away galaxy hasn’t been observed before and doesn’t yet have a name.
“An Einstein ring is an example of strong gravitational lensing,” explains Conor O’Riordan, of the Max Planck Institute for Astrophysics, Germany, and lead author of the first scientific paper analysing the ring. “All strong lenses are special, because they’re so rare, and they’re incredibly useful scientifically. This one is particularly special, because it’s so close to Earth and the alignment makes it very beautiful.”
Albert Einstein’s general theory of relativity predicts that light will bend around objects in space, so that they focus the light like a giant lens. This gravitational lensing effect is bigger for more massive objects – galaxies and clusters of galaxies. It means we can sometimes see the light from distant galaxies that would otherwise be hidden.
If the alignment is just right, the light from the distant source galaxy bends to form a spectacular ring around the foreground object. These Einstein rings are a rich laboratory for scientists. Studying their gravitational effects can help us learn about the expansion of the Universe, detect the effects of invisible dark matter and dark energy, and investigate the background source whose light is bent by dark matter in between us and the source.
“I find it very intriguing that this ring was observed within a well-known galaxy, which was first discovered in 1884,” says Valeria Pettorino, ESA Euclid Project Scientist. “The galaxy has been known to astronomers for a very long time. And yet this ring was never observed before. This demonstrates how powerful Euclid is, finding new things even in places we thought we knew well. This discovery is very encouraging for the future of the Euclid mission and demonstrates its fantastic capabilities.
By exploring how the Universe has expanded and formed over its cosmic history, Euclid will reveal more about the role of gravity and the nature of dark energy and dark matter. The space telescope will map more than a third of the sky, observing billions of galaxies out to 10 billion light-years. It is expected to find around 100 000 strong lenses, but to find one that’s so spectacular – and so close to home – is astonishing. Until now, less than 1000 strong lenses were known, and even fewer were imaged at high resolution.
“Euclid is going to revolutionise the field, with all this data we’ve never had before,” adds Conor.
Although this Einstein ring is stunning, Euclid’s main job is searching for the more subtle effects of weak gravitational lensing, where background galaxies appear only mildly stretched or displaced. To detect this effect, scientists will need to analyse billions of galaxies. Euclid began its detailed survey of the sky on 14 February 2024 and is gradually creating the most extensive 3D map of the Universe yet. Such an amazing find, so early in its mission, means Euclid is on course to uncover many more hidden secrets.
#ConorORiordan #Cosmology #EinsteinRing #Euclid #EuropeanSpaceAgency #NGC6505 #SttrongGravitationalLensing
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One of the coolest, most trippy deep-space object is called an Einstein ring. Named for Albert Einstein, who predicted that massive objects in space could magnify or lens the light of objects far behind them, the eerily perfect circle is an illusion created by warped space-time.
Credit:JWST -
#astronomy #galaxy #EinsteinRing #VLT #ALMA
An article published in the journal "Nature Astronomy" reports the results of a study of the Hyper Luminous Infrared Galaxy (HyLIRG) cataloged as PJ0116-24 which offers some surprises about this type of galaxy. A team of researchers combined observations conducted with the ALMA radio telescope and the Enhanced Resolution Imager and Spectrograph (ERIS) instrument mounted on ESO's VLT to obtain details of PJ0116-24.
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Detailed study of a rare hyperluminous rotating disk in an #EinsteinRing 10 billion years ago: https://www.nature.com/articles/s41550-024-02296-7 -> Zooming in on a surprising ring: https://www.almaobservatory.org/en/image-releases/zooming-in-on-a-surprising-ring/
