#lambdacdm — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #lambdacdm, aggregated by home.social.
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Cosmography alert 🚨
Challenging the assumption of large-scale isotropy: detection of anisotropic cosmic structures on a gigaparsec scale in DESI-DR1 data.
by Francesco Sylos Labini & Marco Galoppo
https://www.nature.com/articles/s41586-026-10702-5
#Cosmology #Cosmography #universe #LambdaCDM #science #news #astrodon #galaxies #DESI
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Cosmography alert 🚨
Challenging the assumption of large-scale isotropy: detection of anisotropic cosmic structures on a gigaparsec scale in DESI-DR1 data.
by Francesco Sylos Labini & Marco Galoppo
https://www.nature.com/articles/s41586-026-10702-5
#Cosmology #Cosmography #universe #LambdaCDM #science #news #astrodon #galaxies #DESI
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https://www.europesays.com/ie/481724/ The universe is significantly older than previously thought, astronomers find #Astronomy #cosmology #CosmologyDebate #DarkEnergy #EarlyUniverse #Éire #GalaxyFormation #IE #Ireland #JamesWebbSpaceTelescope #JWSTGalaxies #LambdaCDM #RajendraGupta #Research #Science #Space #SpaceNews #TiredLightTheory #UniverseAge
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https://www.europesays.com/uk/955900/ The universe is significantly older than previously thought, astronomers find #Astronomy #Cosmology #CosmologyDebate #DarkEnergy #EarlyUniverse #GalaxyFormation #JamesWebbSpaceTelescope #JWSTGalaxies #LambdaCDM #RajendraGupta #Research #Science #Space #SpaceNews #TiredLightTheory #UK #UnitedKingdom #UniverseAge
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https://www.europesays.com/ie/440122/ Scientists reveal the hidden forces shaping how gravity works across the Universe #AtacamaCosmologyTelescope #CosmicMicrowaveBackground #cosmology #DarkEnergy #DarkMatter #Éire #GalaxyClusters #gravity #IE #Ireland #KinematicSunyaevZeldovichEffect #LambdaCDM #MOND #Physics #Research #Science #SpaceNews
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New on Formulon:
How James Webb and latest data are shaking up our ideas about the Universe 🌌✨
From surprising early galaxies to Hubble tension & cosmic structure anomalies — we’re entering a new era of cosmology.
Is ΛCDM in trouble, or just evolving?
https://formulon.blog/2025/12/27/how-james-webb-and-new-data-are-changing-our-ideas-about-the-universe/
#Cosmology #JWST #universe #LambdaCDM #Astrophysics #physics #mathematics -
Everyone wants something better than ΛCDM
There’s a nice short review article on arXiv today by Mike Turner. I wasn’t going to share it because it hasn’t got any pictures in it, but changed my mind.
Here is the abstract
The current cosmological paradigm, ΛCDM, is characterized (b) its expansive description of the history of the Universe, its deep connections to particle physics and the large amounts of data that support it. Nonetheless, ΛCDM’s critics argue that it has been falsified or must be discarded for various reasons. Critics and boosters alike do agree on one thing: it is the not the final cosmological theory and they are anxious to see it replaced by something better! I review the status of ΛCDM, provide my views of the path forward, and discuss the role that the “Hubble tension” might play.
arXiv:2510.05483
To make up for the lack of pictures in the article, here’s the first image that came up when I did a search for “ΛCDM”:
#arXiv251005483 #Cosmology #HubbleTension #LambdaCDM #MikeTurner
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Everyone wants something better than ΛCDM
There’s a nice short review article on arXiv today by Mike Turner. I wasn’t going to share it because it hasn’t got any pictures in it, but changed my mind.
Here is the abstract
The current cosmological paradigm, ΛCDM, is characterized (b) its expansive description of the history of the Universe, its deep connections to particle physics and the large amounts of data that support it. Nonetheless, ΛCDM’s critics argue that it has been falsified or must be discarded for various reasons. Critics and boosters alike do agree on one thing: it is the not the final cosmological theory and they are anxious to see it replaced by something better! I review the status of ΛCDM, provide my views of the path forward, and discuss the role that the “Hubble tension” might play.
arXiv:2510.05483
To make up for the lack of pictures in the article, here’s the first image that came up when I did a search for “ΛCDM”:
#arXiv251005483 #Cosmology #HubbleTension #LambdaCDM #MikeTurner
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Everyone wants something better than ΛCDM
There’s a nice short review article on arXiv today by Mike Turner. I wasn’t going to share it because it hasn’t got any pictures in it, but changed my mind.
Here is the abstract
The current cosmological paradigm, ΛCDM, is characterized (b) its expansive description of the history of the Universe, its deep connections to particle physics and the large amounts of data that support it. Nonetheless, ΛCDM’s critics argue that it has been falsified or must be discarded for various reasons. Critics and boosters alike do agree on one thing: it is the not the final cosmological theory and they are anxious to see it replaced by something better! I review the status of ΛCDM, provide my views of the path forward, and discuss the role that the “Hubble tension” might play.
arXiv:2510.05483
To make up for the lack of pictures in the article, here’s the first image that came up when I did a search for “ΛCDM”:
#arXiv251005483 #Cosmology #HubbleTension #LambdaCDM #MikeTurner
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https://www.europesays.com/uk/260753/ New Simulations Reveal Dozens of Hidden Galaxies Orbiting the Milky Way #DarkMatterHalo #DurhamUniversity #LambdaCDM #MilkyWayGalaxy #OrphanGalaxies #RoyalAstronomicalSociety #SatelliteGalaxies #Science #Space #UK #UnitedKingdom
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Könnt ihr das erklären:
https://www.port.ac.uk/news-events-and-blogs/blogs/space-cosmology-and-the-universe/what-if-the-big-bang-wasnt-the-beginning-our-research-suggests-it-may-have-taken-place-inside-a-black-holePhys. Rev. D klingt mir nach seriöser Zeitschrift, während die Behauptung schon ziemlich abgefahren ist.
"But how come Penrose’s theorems forbid out such outcomes? It’s all down to a rule called the quantum exclusion principle..."
Kann mir kaum vorstellen, dass Penrose das Pauli-Prinzip nicht kannte.
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.111.103537
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Könnt ihr das erklären:
https://www.port.ac.uk/news-events-and-blogs/blogs/space-cosmology-and-the-universe/what-if-the-big-bang-wasnt-the-beginning-our-research-suggests-it-may-have-taken-place-inside-a-black-holePhys. Rev. D klingt mir nach seriöser Zeitschrift, während die Behauptung schon ziemlich abgefahren ist.
"But how come Penrose’s theorems forbid out such outcomes? It’s all down to a rule called the quantum exclusion principle..."
Kann mir kaum vorstellen, dass Penrose das Pauli-Prinzip nicht kannte.
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.111.103537
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🤯:
“Dark Energy May Not Exist: Something Stranger Might Explain The Universe”, Science Alert (https://www.sciencealert.com/dark-energy-may-not-exist-something-stranger-might-explain-the-universe).
On HN: https://news.ycombinator.com/item?id=42587826
#Cosmology #LambdaCDM #TimescapeCosmology #Universe #Time #Gravity #DarkMatter #DarkEnergy #Relativity #Science
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🤯:
“Dark Energy May Not Exist: Something Stranger Might Explain The Universe”, Science Alert (https://www.sciencealert.com/dark-energy-may-not-exist-something-stranger-might-explain-the-universe).
On HN: https://news.ycombinator.com/item?id=42587826
#Cosmology #LambdaCDM #TimescapeCosmology #Universe #Time #Gravity #DarkMatter #DarkEnergy #Relativity #Science
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This is a highly interesting study! 🧐
https://www.mpifr-bonn.mpg.de/pressreleases/2024/10The amplitude of the dipole is not as high as in the papers by Singal, Secrest, Schwarz et al.. curious to follow-up on why this turns out to be the case! (deeper survey, different sampling on the sky, etc..)
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Die Dunkle Energie bewirkt, dass sich unser Universum beschleunigt ausdehnt, gilt aber selbst als konstant. Doch nun gibt es erste Hinweise, dass sie mit der Zeit schwächer wird.#DESI #DunkleEnergie #Universum #BAO #Hubble-Konstante #Hubble-Parameter #KosmologischeKonstante #Supernovae #Galaxien #Galaxienhaufen #Quasar #Teleskop #Expansion #Inflation #Skalarfeld #Stringtheorie #Urknall #Kosmos #Kosmologie #Astrophysik #Astronomie #Standardmodell #Lambda-CDM #anonsys.net/search?tag= #Physik
Wird die Dunkle Energie schwächer? -
#GeraintLewis - The #DarkSide of the #Universe
https://www.youtube.com/watch?v=vxl5Ov2xyKE
#Philosophy #PhilosophyOfScience #Science #PhilosophyOfCosmology #Cosmology #BigBang #DarkMatter #StandardModel #LambdaCDM #CDM #CMB #CosmicMicrowaveBackground #Gravity #GravitationalLensing #MOND #Lensing #DarkEnergy #Astronomy #Astrophysics #Physics #ParticlePhysics #CloserToTruth #RobertKuhn
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#GeraintLewis - The #DarkSide of the #Universe
https://www.youtube.com/watch?v=vxl5Ov2xyKE
#Philosophy #PhilosophyOfScience #Science #PhilosophyOfCosmology #Cosmology #BigBang #DarkMatter #StandardModel #LambdaCDM #CDM #CMB #CosmicMicrowaveBackground #Gravity #GravitationalLensing #MOND #Lensing #DarkEnergy #Astronomy #Astrophysics #Physics #ParticlePhysics #CloserToTruth #RobertKuhn
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[Перевод] Исследователи с DESI составили самую большую трёхмерную карту нашей Вселенной
С помощью 5 000 крошечных роботов в телескопе, расположенном на вершине горы, исследователи могут заглянуть на 11 миллиардов лет в прошлое. Свет от далёких космических объектов только сейчас достигает спектроскопического прибора Dark Energy Spectroscopic Instrument (DESI), позволяя нам составить карту космоса, каким он был в юности, и проследить его развитие до того, что мы видим сегодня. Понимание того, как развивалась наша Вселенная, связано с тем, как она закончится, и с одной из самых больших загадок в физике: тёмной энергией , неизвестным ингредиентом, заставляющим нашу Вселенную расширяться всё быстрее и быстрее. Чтобы изучить влияние тёмной энергии за последние 11 миллиардов лет, в DESI создали самую большую трёхмерную карту нашего космоса из когда-либо созданных, с самыми точными измерениями на сегодняшний день. Впервые учёные измерили историю расширения молодой Вселенной с точностью более 1 %, что даёт нам лучшее представление о том, как развивалась Вселенная.
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Dark energy might not be constant after all - Enlarge / The Dark Energy Spectroscopic Instrument (DESI) has made the ... - https://arstechnica.com/?p=2013826 #darkenergyspectroscopicinstrument #baryonicacousticoscillations #astrophysics #darkenergy #astronomy #cosmology #lambdacdm #science #physics #quasars #desi
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Dark energy might not be constant after all - Enlarge / The Dark Energy Spectroscopic Instrument (DESI) has made the ... - https://arstechnica.com/?p=2013826 #darkenergyspectroscopicinstrument #baryonicacousticoscillations #astrophysics #darkenergy #astronomy #cosmology #lambdacdm #science #physics #quasars #desi
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The Milky Way’s Smallest, Faintest Satellite Galaxy Found https://www.universetoday.com/166388/the-milky-ways-smallest-faintest-satellite-galaxy-found/ #satellitegalaxies #globularclusters #darkmatterhalo #dwarfgalaxies #darkmatter #astronomy #lambdacdm #galaxies #milkyway
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Biggest ever #supercomputer simulation #lambdacdm to investigate #universe’s evolution | The Independent via @theindependentuk
Via @space.com
https://www.space.com/largest-computer-simulation-of-universe-s8-debate
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#AnthonyAguirre - Did #God Create #MultipleUniverses?
https://www.youtube.com/watch?v=2M2WwFuIn5s&ab_channel=CloserToTruth
#Philosophy #PhilosophyOfScience #Science #PhilosophyOfCosmology #Cosmology #Belief #Multiverse #StandardModel #CDM #LambdaCDM #Life #Evolution #FineTuning #LawsOfPhysics #LawsOfNature #CloserToTruth #RobertKuhn
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#AnthonyAguirre - Did #God Create #MultipleUniverses?
https://www.youtube.com/watch?v=2M2WwFuIn5s&ab_channel=CloserToTruth
#Philosophy #PhilosophyOfScience #Science #PhilosophyOfCosmology #Cosmology #Belief #Multiverse #StandardModel #CDM #LambdaCDM #Life #Evolution #FineTuning #LawsOfPhysics #LawsOfNature #CloserToTruth #RobertKuhn
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https://phys.org/news/2023-07-age-universe-billion-years-previously.html
"…age of our universe…estimated at 13.797B years using #LambdaCDM concordance model…
However, many scientists have been puzzled by the existence of stars like the Methuselah that appear to be older than the estimated age of our universe and…early galaxies in an advanced state of evolution made possible by #Webb…existing a mere 300M years or so after the Big Bang, appear to have a level of maturity and mass typically associated with billions of years of cosmic evolution.