https://www.europesays.com/ie/705798/ The Universe Is Full of Tiny Red Dots—and They’re One of Astronomy’s Biggest Discoveries in Decades #Astronomy #Éire #GizmodoScienceFair #IE #Ireland #JamesWebbSpaceTelescope #LittleRedDots #Science
#little-red-dots — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #little-red-dots, aggregated by home.social.
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The Universe Is Full of Tiny Red Dots—and They’re One of Astronomy’s Biggest Discoveries in Decades
A team from the University of Texas at Austin and its partners is a winner of the 2026…
#NewsBeep #News #Science #Astronomy #CA #Canada #GizmodoScienceFair #Jameswebbspacetelescope #littlereddots
https://www.newsbeep.com/ca/909073/ -
Supercomputer simulations may finally explain Webb’s mysterious Little Red Dots
Simulations suggest ma…
#NewsBeep #News #Science #Astronomy #ATERUIIII #AU #Australia #blackholegrowth #blackholeseeds #cosmicdawn #cosmologicalsimulations #Cosmology #directcollapseblackholes #EarlyUniverse #far-ultravioletradiation #Jameswebbspacetelescope #JWST #littlereddots #nature #NewDiscoveries #Quasars #research #SpaceNews #super-Eddingtonaccretion #supermassiveblackholes
https://www.newsbeep.com/au/898024/ -
Japanse supercomputersimulaties kunnen mogelijk de ‘Little Red Dots’ verklaren
Van alle ontdekkingen van de Webb Space Telescope behoren de vele ‘Little Red Dots’ (kleine rode stippen) die zijn waargenomen
#AteruIII #JongeHeelal #KleineRodeStippen #LittleRedDots #SupermassieveZwarteGaten #WebbSpaceTelescope #ZwarteGaten
https://www.kuuke.nl/japanse-supercomputersimulaties-kunnen-mogelijk-de-little-red-dots-verklaren/ -
"Ein internationales Forschungsteam unter Leitung von Sunmyon Chon vom Max-Planck-Institut für Astrophysik (MPA) hat nach eigenen Angaben das Rätsel um die „kleinen roten Punkte“ („Little Red Dots“) gelöst, das die Astronomie seit Jahren umtreibt."
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Next at #ag2026garching came Anna de Graaff explaining Webb's #LittleRedDots as #BlackHoleStars - as discussed first in https://www.mpg.de/25316826/black-hole-stars a year ago - or something similar.
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JWST Found Little Red Dots Merging
#JWST #NancyGraceRomanSpaceTelescope
#BlackHoles
#Saturn
#LittleRedDots 🔴https://youtu.be/AvoSIyuVXWM?si=jMkxhf2R-yuSdPtv
Space Bites This Weeks
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JWST finds mysterious red objects pairing up in the early universe
JWST images have revealed four candidate pairs of “little red dots,” comp…
#NewsBeep #News #Science #activegalacticnuclei #Astronomy #AU #Australia #blackholemergers #BlackHoles #Cosmology #cosmos-web #EarlyUniverse #GalaxyMergers #Gravitationalwaves #infraredastronomy #Jameswebbspacetelescope #JWST #KavliIPMU #lisa #littlereddots #research #SpaceNews #supermassiveblackholes #UniversityofTokyo
https://www.newsbeep.com/au/878688/ -
https://www.europesays.com/be-fr/235054/ Le télescope James-Webb a détecté des « petits points rouges » par deux : vers une collision de trous noirs géants ? #astrophysique #BE #BEFr #Belgique #Belgium #Cosmologie #DesCollisionsDeLittleRedDots #JamesWebbSpaceTelescope #LittleRedDots #Science #ScienceAndTechnology #Sciences #SciencesEtTechnologies #Technologies #Technology #TélescopeSpatialJamesWebb #TrouNoir #TrouNoirSupermassif
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https://www.europesays.com/ch-fr/286646/ Le télescope James-Webb a détecté des « petits points rouges » par deux : vers une collision de trous noirs géants ? #Astrophysique #Cosmologie #DesCollisionsDeLittleRedDots #JamesWebbSpaceTelescope #LittleRedDots #Science #ScienceAndTechnology #Sciences #SciencesEtTechnologies #Suisse #Technologies #Technology #TélescopeSpatialJamesWebb #TrouNoir #TrouNoirSupermassif
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Space mystery leads scientists to discovery of ‘black hole stars’
Astronomers identify new type of ‘bl…
#NewsBeep #News #Science #all-newtype #Astronomer #Astronomers #Astronomy #Blackhole #blackholestar #CA #Canada #Discovery #firstimage #Galaxy #Jameswebbspacetelescope #lightoutput #littlereddots #lrd #LRDs #MoM-BH*-1 #Mystery #NASA #quasi-star #researcher #rohannaidu #Space #spacemystery #spaceobject #supermassiveblackhole #unassumingreddot #universe #Webb
https://www.newsbeep.com/ca/865619/ -
JWST’s Little Red Dots Are Even Stranger Than Predicted - YouTube
https://www.youtube.com/watch?v=b1ZTMP1wqqE -
https://www.europesays.com/ie/648075/ Space mystery leads scientists to discovery of ‘black hole stars’ #AllNewType #Astronomer #Astronomers #Astronomy #BlackHole #BlackHoleStar #Discovery #Éire #FirstImage #Galaxy #IE #Ireland #JamesWebbSpaceTelescope #LightOutput #LittleRedDots #lrd #LRDs #MoMBH1 #Mystery #nasa #QuasiStar #researcher #RohanNaidu #Science #Space #SpaceMystery #SpaceObject #SupermassiveBlackHole #UnassumingRedDot #universe #Webb
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https://www.europesays.com/pt/492482/ James Webb revela um Universo primordial mais complexo do que os modelos previam #Ciência #CiênciaETecnologia #CiênciaEtecnologia #JamesWebbSpaceTelescope #LittleRedDots #Portugal #PT #Science #ScienceAndTechnology #ScienceAndTechnology #Technology #Tecnologia #UniversoPrimordial
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https://www.europesays.com/ie/645020/ Rohan Naidu’s Journey From Engineering to Astronomer: Inside the Puzzling ‘Black Hole Star’ Discovery Reshaping Our View of the Early Universe #AstronomyCareer #BigBang #BlackHoleStar #EarlyUniverse #Éire #GalacticArchaeology #GLASSZ13 #HubbleFellow #HyderabadAstronomer #IE #Ireland #JamesWebb #LittleRedDots #MITAstrophysics #MoMBH1 #RohanNaidu #Science #Space #SupermassiveBlackholes #YaleNUS
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https://www.europesays.com/ch-fr/261089/ Des trous noirs géants cachés dans des étoiles : James-Webb a-t-il enfin percé le mystère des petits points rouges ? #Astronomie #ÉtoilesàTrouNoirs #JamesWebbSpaceTelescope #LittleRedDots #MoMBH*1 #Science #ScienceAndTechnology #Sciences #SciencesEtTechnologies #Suisse #Technologies #Technology #TélescopeSpatialJamesWebb #TrouNoirSupermassif
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https://www.europesays.com/ie/636739/ Astronomers May Have Found a New Kind of Object Called a ‘Black Hole Star’ at Cosmic Dawn #BlackHoles #Éire #IE #Ireland #JamesWebbSpaceTelescope #LittleRedDots #Science
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https://www.europesays.com/ie/636308/ First known black hole star discovered by James Webb Space Telescope #Astronomy #AstronomyDiscoveries #astrophysics #BlackHoleFormation #BlackHoleStar #BlackHoles #CosmicDawn #CosmicEvolution #cosmology #EarlyUniverse #Éire #Galaxies #IE #Ireland #JamesWebbSpaceTelescope #jwst #LittleRedDots #MoMBH1 #nasa #nature #Science #Space #SpaceScience #SupermassiveBlackHoles
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Astronomers Discover a Brand-New Type of Object: Part Black Hole, Part Star
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An LRD-like Nucleus at the Heart of an IR-bright Galaxy and its Implications for High-redshift LRDs: https://iopscience.iop.org/article/10.3847/1538-4357/ae80cd -> NASA Webb Explores Family Tree of Newly Discovered Distant Objects: https://science.nasa.gov/missions/webb/nasa-webb-explores-family-tree-of-newly-discovered-distant-objects/ #LittleRedDots
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This month on All Space Considered, Griffith Observatory welcomed Dr. Joel Leja, Associate Professor of astronomy & astrophysics at The Pennsylvania State University, to discuss his research on the processes of galaxy formation derived from a combination of statistics, machine learning, and deep galaxy surveys with telescopes like the James Webb Space Telescope: https://www.youtube.com/watch?v=W49e3MSsg14 - in particular he discussed the new, mysterious, very bright, and seemingly impossible objects at the edge of the universe which have been puzzling all of us, the #LittleRedDots
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No evolution in the number density of #LittleRedDots from cosmic dawn to cosmic noon: https://arxiv.org/abs/2606.30253 -> Backyard Black Holes: https://astrobites.org/2026/07/09/backyard-lrds/
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#LittleRedDots as Globular Clusters in Formation: https://iopscience.iop.org/article/10.3847/2041-8213/ae6dae -> Little Red Dots Do James Webb Podem Ser Aglomerados Blobulares Recém-Nascidos: https://spacetoday.substack.com/p/little-red-dots-do-james-webb-podem - estudo de John Chisholm e colegas propõe que os enigmáticos pontos vermelhos flagrados pelo telescópio escondam, no lugar de buracos negros supermassivos, sejam aglomerados globulares!
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#LittleRedDots as Hidden Neutrino Sources: https://arxiv.org/abs/2601.11203 -> The little red galaxies that may be sending us neutrinos: https://www.kyoto-u.ac.jp/en/research-news/2026-06-30
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How Fast Does Information Travel to Earth from the Outer Most Reaches of the Cosmos?
A cluster of bright, glowing red galaxies in at very great distances in the universeThere have been observations by the astronomers using the celebrated James Webb Space Telescope (JWST) of galaxies with redshifts as high as 14, or 16, which means that they are being observed at a distance of more than 13.5 billion light-years and when the universe was only about 250 million years old if the standard big bang model is correct.
I recently reported that a new problem had developed. A newly observed object, CEERS-U-100588, provisionally named “Capotauro”, exhibited a photometric redshift of z = 32, far greater that any previously measured. That object highlighted the problem of correctly identifying these very high redshift Little Red Dot (LRD) objects. Its spectrum looks very much like a brown dwarf star in our galaxy and therefore could not be at the edge of the visible universe.
If it has a redshift of 32 and the standard cosmological model is correct it would mean Capotauro is observed at a time only 90 million years after the big bang. The inference is that the light that forms these images of these LRD galaxies, which we observe now in our solar system, took more than 13.5 billion years to reach us. But is that correct? And how does that fit with the biblical creation timescale much less than 10,000 years?
It really depends on your worldview. Yes, and your worldview influences what clock synchrony convention you stipulate. Let me explain.
More than 120 years ago Einstein introduced us to the concept of relativity. What that means is that all measurements of length (space) and time are subject to relative motion between the source and the observer. Different observers may conclude different outcomes for the same observation. What one observer measures will be different from another who is not co-moving with the other.
Einstein developed his theory of relativity based on the principle that only the spacetime interval between two inertial observers is invariant. It is a value that all observers could calculate and get the same result. But time alone is not invariant.
Clocks separated by a distance, one local and one distant, cannot be assumed to be synchronised. In fact, no synchronisation technique is possible using only the one-way transmission of a light signal. Only by choice of a synchrony convention can we make any useful calculation regarding distance and time. The chosen convention relates directly to the assumed one-way speed of light.
Einstein’s physics calls this the relativity of simultaneity. In that we have a free choice when choosing a clock timing convention. A choice of a convention is necessary to calculate the outcome of timing experiments like the light travel time from sources in the cosmos to Earth.
Let me give you a simple example. Let us assume a distant clock floating in space shows 12 noon and that information is sent by radio signal to us on Earth at an infinite speed. With no time lag the time we’d observe is 12 noon on the distant clock and that would agree with our local Earth clock. We’d then say the clocks are synchronised. Both clocks record the same time.
But how would you know how long it took that clock timing information to travel from the space clock to the Earth clock?
If you send a signal from Earth to the space clock and back again could you know the roundtrip travel time. That would let you synchronise the two clocks. But to do so only from the light signal coming one way from the space clock would be impossible. You would not know what time the signal left the source as measured on your local clock. Only if you assume the two clocks are synchronised could you calculate the travel time. But an assumption is made, that is, a convention is required to be stipulated.
This let’s you see that to choose a one-way speed of light value a convention on synchronisation of clocks separated by a distance is required.
If we do not assume any particular clock timing convention, and there are an infinite number, but leave it as a free parameter (ε), from relativity we can write down the one-way speed of light from a source as either v = c/2(ε-1) or v = c/2ε (two solutions), v speed in the positive direction, where ε is the Reichenbach parameter that can take any value between 0 ≤ ε ≤ 1. The parameter c is the measured two-way or round-trip speed of light in vacuum.
Check the time for a light signal to travel distance d one-way to a reflecting mirror and back again. Only the round trip time can be measured on a local clock.
A green laser beam connects two mountain observatories for time synchronization at night.The one-way travel time of a light pulse to a mirror at a distance d away t1 = d/v = d 2ε/c and the time to travel back again one-way t2 = d/v = – d 2(ε-1)/c . The minus sign indicates the return journey.
Now add t1+ t2 = 2d/c ε – 2d/c ε + 2d/c = 2d/c and you get the total time which is the measured round-trip time. It is as we expect, twice the total distance d divided by the average speed of light c. By flipping this equation scientists have experimentally measured the average round-trip speed and always get c.
The clock synchronisation parameter ε disappears from the equation above. It cancels out. That means that no clock timing convention is needed, obviously because the same clock is used at the source and the receiver at the same location.
To examine what we get for a few special conventions let’s choose a some specific values for ε.
If ε = 1, then v = – ∞, meaning the incoming light speed is infinite towards you and v = ½c, meaning the outgoing light speed is half c away from you. This convention we call the Anisotropic Synchrony Convention (ASC).
But Einstein chose the convention with ε = ½ and for that reason it is called the Einstein Synchrony Convention (ESC).
If ε = ½, then v = – c, meaning the incoming light speed is c towards you and v = c, meaning the outgoing light speed is c away from you.
Thus under the ESC the one-way speed of light in any direction is equal to c, by convention. That is it assumes that the speed of light is isotropic.
However with all these conventions, for any allowable value of ε, the round trip speed of light is always c, which is the only measured value.
So now to answer the headline question. How fast does information travel from the outer most reaches of the cosmos?
It always travels at the speed of light. But what’s the incoming one-way speed of light?
You can’t just say the canonical value c = 299,792.458 km/s. That is the two-way or round trip measured speed.
I could say that the one-way speed of light coming in to Earth is -c/2(ε-1). Only by choosing a timing convention ε does it take a value. If I then choose ε = 1 the speed of light is infinite. And using the other solution c/2ε it evaluates to c/2 for the outgoing speed. Therefore the roundtrip average speed is c and invariant to all observers.
Therefore we can say that we see the most distant galaxies in the universe in real time. We can also say that the information about them and their spectra used to calculate their redshifts travelled to Earth instantaneously. There was no time delay.
The pattern of spectral lines formed in a galaxy’s light emissions just as the light left the galaxy is exactly the same as that we observe now.
There is no need to imagine that the wavelengths of those emissions were stretched out as the light travelled through space from the distant cosmos under the assumption of a finite speed of light c. That is the usual assumption for cosmological expansion of space, and they call that cosmological redshift.
Besides if the universe is static, which I believe it is, there can be no such stretching of space.
But if the universe was actually expanding, and if that mechanism really caused a redshift, the spectra in the galaxy light would change as a function of time. That is, from one year to the next the spectral lines should be slightly shifted. Such astronomical surveys are actually performed. However the sought after effects are tiny.
But none of this proves or disproves a convention. Both ESC and ASC are conventions. And both are used in interpreting the observed data.
Observed spectral features are formed by the oscillating atomic species in the gases in a source galaxy. And under the ASC model that light with its spectral features was carried to Earth instantly. So whatever the cause of the redshift, whether it be something intrinsic, or Doppler motion, or gravitational or other, that information was sent at infinite speed to the Earth observer.
Redshifted spectrum analysis of distant red galaxy GDS-482 in deep spaceSee above spectrum. This was observed at the Earth-based telescope, not out in the cosmos at the source.
Only by comparison with a lab reference can any shift in any line be determined. Note the Oxygen (OII, OIII) and Hydrogen (Hα, Hβ) lines in the above graphic. These emission lines were the result of excitation of those gases in some stars in the galaxy.
As I explained here the lines are due to the frequency of excitation and not their wavelength. To convert frequency to wavelength the canonical speed of light c is assumed. That means a timing convention was implicitly assumed.
But no physics is changed by assuming another timing convention. Therefore perhaps it is easier to use the equations that assume Einstein’s Synchrony Convention (ESC) in such cases as this. Isotropy in the speed of light does simplify the equations needed.
But in terms of transmission of information from the cosmos, eg. that spectrum, the Anisotropic Synchrony Convention (ASC) can explain an age for the universe consistent with the biblical timescale of less than 10,000 years.
Certainly the ASC model would predict fully formed mature galaxies as far as we can see them. God created a mature fully formed and functioning universe right from the fourth day of creation week. The JWST seems to be revealing such a universe.
Related Reading
- Are We Really Observing the Universe in Real Time?
- Can We See Into the Past?
- Do Distant Light Emissions Prove a Finite One-Way Speed of Light?
- Do Million-Light-Year-Long Galactic Jets Disprove the Bible on the Age of the Universe?
- James Webb Space Telescope | Extremely High Redshift Failure
- The James Webb Space Telescope Demolishes the Big Bang Hypothesis
- James Webb Space Telescope | Little Red Dot Galaxies are a Big Big Bang Problem
- Little Red Dots | Primordial Black Holes or Big Bang Failures?
- The Anisotropic Synchrony Convention Model as a Solution to the Creationist Starlight-Travel-Time Problem — Part I
- The Anisotropic Synchrony Convention Model as a Solution to the Creationist Starlight-Travel-Time Problem — Part II
- The Conventionality Thesis on the Synchronisation of Clocks Separated by Distance
- Questions on the Conventionality Thesis and the One-Way Speed of Light
- The Effects of the Curse Visible in the Cosmos Present Another Biblical Creationist Starlight Travel-Time Problem
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#AnisotropicSynchronyConvention #ASC #einsteinSynchronyConvention #ESC #JWST #LittleRedDots #oneWaySpeedOfLight #roundTripSpeedOfLight -
JWST Evidence That We Found Exotic Black Hole Stars After All - YouTube
https://www.youtube.com/watch?v=ZtPiCh0NBt8 -
The nature of `little blue dots': https://arxiv.org/abs/2606.12509 -> "We [...] propose that LBDs are lower-column analogues of LRDs within a common gas-cocooned AGN sequence." #LittleRedDots
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James Webb Space Telescope finds evidence the mysterious ‘little red dots’ are black hole stars
When you buy through links on our articles, Future and its syndication partners may earn a commission. An…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Science #blackhole #blackholestar #Gravitationallens #JamesWebbSpaceTelescope #Littlereddot #LittleRedDots #star #supermassiveblackhole #UniversityofTexasatAustin #V.Kokorev #VasilyKokorev
https://www.newsbeep.com/us/699693/ -
Major Little Red Dot Revelation Just Challenged Galactic Models - YouTube
https://www.youtube.com/watch?v=4IidxRZ47M0 -
Misurata la massa di un buco nero agli albori dell'universo. È stata ottenuta la misura diretta della massa di un buco nero situato in uno dei "piccoli punti rossi" (Little Red Dots, Lrd) rilevati dal telescopio spaziale James Webb. L'oggetto si trova in una galassia risalente a un’epoca in cui l’universo aveva solo 700 milioni di anni.
#Abell2744QSO1 #Astronomia #buchineriprimordiali #Cosmologia #Evoluzionegalassie #LittleRedDots #telescópioJamesWebb
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https://www.europesays.com/at/182354/ Welt der Physik: Wie viel wiegt ein „Little Red Dot“? #AT #Austria #Gravitationslinse #Gravitationslinseneffekt #JamesWebbSpaceTelescope #JamesWebbTeleskop #JamesWebbWeltraumteleskop #LittleRedDots #Masse #Österreich #SchwarzesLoch #Science #Science&Technology #Technik #Technology #Wissenschaft #Wissenschaft&Technik
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De stipjes die de regels braken
Wat zijn die kleine rode stipjes? Het is een vraag die astronomen al sinds de lancering van de Webb Space
#ChandraRöntgentelescoop #JongeHeelal #LittleRedDots #WebbSpaceTelescope #ZwarteGaten
https://www.kuuke.nl/de-stipjes-die-de-regels-braken/ -
Massive black hole from the early universe has astronomers looking back to the Big Bang
Far back in cosmic time, one small red object is refusing to behave. Abell 2744–QSO1 app…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Space #Abell2744-QSO1 #Astronomy #BoyuanLiu #Cosmology #earlyuniverse #GalaxyFormation #JamesWebbSpaceTelescope #LittleRedDots #metal-poorgalaxies #primordialblackholes #Research #Science #SpaceNews #supermassiveblackholes
https://www.newsbeep.com/us/635713/ -
Massive black hole from the early universe has astronomers looking back to the Big Bang
Far back in cosmic time, one small red object is refusing to behave. Abell 2744–QSO1 appears just 700…
#NewsBeep #News #Space #Abell2744-QSO1 #astronomy #BoyuanLiu #Cosmology #EarlyUniverse #GalaxyFormation #jameswebbspacetelescope #littlereddots #metal-poorgalaxies #primordialblackholes #research #Science #SpaceNews #supermassiveblackholes #UK #UnitedKingdom
https://www.newsbeep.com/uk/577310/ -
Massive black hole from the early universe has astronomers looking back to the Big Bang
Far back in cosmic time, one small red object is refusing to behave. Abell 2744–QSO1 appears just 700…
#NewsBeep #News #Space #Abell2744-QSO1 #Astronomy #BoyuanLiu #CA #Canada #Cosmology #earlyuniverse #GalaxyFormation #Jameswebbspacetelescope #littlereddots #metal-poorgalaxies #primordialblackholes #research #Science #SpaceNews #supermassiveblackholes
https://www.newsbeep.com/ca/661224/ -
Little Red Dots and Their Progenitors from Direct Collapse Black Holes: https://iopscience.iop.org/article/10.3847/1538-4357/ae3725 -> #LittleRedDots - New Clues from the Early Universe: https://tacc.utexas.edu/news/latest-news/2026/04/16/little-red-dots-new-clues-from-the-early-universe/ - TACC supercomputer simulations shed light on the mysterious origins of these enigmatic cosmic objects.
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#UniWien:
"
Die kalte und staubige Seite der Galaxienentstehung
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"Neue Simulationen bestätigen kosmologisches Standardmodell – COLIBRE macht Galaxien-Entwicklung auch hörbar"14.4.2026
#Astrophysik #COLIBRE #Galaxie #Gas #JWST #Kosmologie #LittleRedDots #LCDM #SchwarzesLoch #Simulation #Standardmodell #Staub #Universum
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Baby galaxies under construction: Glorious cosmic discovery Baby galaxies under construction might be the mysterious Little Red Dots found by the James Webb Space Telescope. Recent studies suggest ...
#Missions #Astrophysics #Cosmology #Galaxies #GlobularClusters #JWST #LittleRedDots #SpaceExploration
Origin | Interest | Match -
Then it would seem (to novice me) that the collapse of a gigantic star tossing off unusual elements found in globular clusters would form the black hole in the center of larger galaxies which dwarf galaxies travel with. The spin of the gigantic star would seed the spin of the black hole and its emergent galaxy.
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Record Breaking Massive Black Holes Challenge Modern Models - YouTube
https://www.youtube.com/watch?v=58K_z0MeDdk -
Weekly Update from the Open Journal of Astrophysics – 24/01/2026
It’s Saturday once more so time for another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further three papers, bringing the number in Volume 9 (2026) to 14 and the total so far published by OJAp up to 462. This week was slightly affected by a Federal holiday in the USA on January 19th; there were no arXiv announcements the following day.
I will continue to include the posts made on our Mastodon account (on Fediscience) to encourage you to visit it. Mastodon is a really excellent service, and a more than adequate replacement for X/Twitter which nobody should be using.
The first paper to report this week is “The Properties of Little Red Dot Galaxies in the ASTRID Simulation” by Patrick LaChance, Rupert A. C. Croft, Tiziana Di Matteo & Yihao Zhou (Carnegie Mellon U.), Fabio Pacucci (Harvard-Smithsonian CfA), Yueying Ni (U. Michigan Ann Arbor), Nianyi Chen (Princeton U.) and Simeon Bird (UC Riverside), all based in the USA. This paper was published on Monday 19th January 2026 in the folder Cosmology and Nongalactic Astrophysics; the study analyses mock observations of “Little Red Dot” galaxies created from the ASTRID simulation, having high stellar masses and containing massive black holes; not all features match real observations.
The overlay is here:
You can find the officially accepted version on arXiv here and the announcement on Fediverse here:
https://fediscience.org/@OJ_Astro/115921308789068125
The second paper is “Angular bispectrum of matter number counts in cosmic structures” by Thomas Montandon (U. Montpellier, France), Enea Di Dio (U. Genève, Switzerland), Cornelius Rampf (Ruđer Bošković Institute, Croatia) and Julian Adamek (U. Zürich, Switzerland). This was published on Wednesday January 21st, also in the folder Cosmology and Nongalactic Astrophysics. This paper presents thee first full-sky computation of the angular bispectrum in second-order perturbation theory, offering insights into the Universe’s initial conditions, gravity, and cosmological parameters. The results align well with simulations.
The overlay for this one is here:
The official version of the paper can be found on arXiv here and the Fediverse announcement here:
https://fediscience.org/@OJ_Astro/115932387870297108
Next, and last for this week, we have “The Kinematic Properties of TŻO Candidate HV 11417 with Gaia DR3” by Anna J. G. O’Grady (Carnegie Mellon University, USA). This was published on Wednesday 21st January 2026 in the folder Solar and Stellar Astrophysics. This work uses updated data to confirm that HV 11417, a potential Thorne-Żytkow Object, is probably part of the Small Magellanic Cloud and qualifies as a runaway star.
The overlay is here:
The official version can be found on arXiv here and the Fediverse announcement is here:
https://fediscience.org/@OJ_Astro/115932444483985982
That concludes the update for this week. I will do another next Saturday.
#angularBispectrum #arXiv250105422v3 #arXiv251123368v2 #AstridSimulations #AstrophysicsOfGalaxies #bispectrum #CosmologyAndNonGalacticAstrophysics #DiamondOpenAccess #DiamondOpenAccessPublishing #GaiaDR3 #largeScaleStructureOfTheUniverse #LittleRedDots #OpenAccess #OpenAccessPublishing #OpenJournalOfAstrophysics #SolarAndStellarAstrophysics #TheOpenJournalOfAstrophysics #ThorneŻytkowObjects
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On the cover of Nature's new issue: Little Red Dots - Enigmatic objects in the distant Universe could be young black holes in a cocoon of gas.
Credit image: The CEERS Survey/The JADES Survey/PRIMER/The UNCOVER survey/Dawn JWST Archive
https://www.nature.com/nature/volumes/649/issues/8097 @nature.com
#Nature #Astrophysic #Astronomy #galaxies #JWST #Webb #Astrodon #blackholes #science #news #LittleRedDots #Universe
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Rätsel der „Little Red Dots“ gelöst. Astronomen finden neue Erklärung für mysteriöse rote Objekte im frühen Universum. #Astronomie #JWST #LittleRedDots #SchwarzesLoch
https://www.scinexx.de/news/kosmos/raetsel-der-little-red-dots-geloest/ -
#LittleRedDots as young supermassive black holes in dense ionized cocoons: https://www.nature.com/articles/s41586-025-09900-4 -> Solving the mystery of the universe's ‘little red dots’: https://news.ku.dk/all_news/2026/01/copenhagen-researchers-make-the-front-page-of-nature-solving-the-mystery-of-the-universes-little-red-dots/
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JWST observed dozens of Little Red Dots that may be Black holes in early Universe The researchers suggest that "If these LRDs were made up of stars, they would be the densest galaxies in the un...
#Astronomy #& #Space #blackholestar #jameswebbtelescope #littlereddots #scientificresearch #Supermassiveblackhole #Astrophysics #Research #highlights
Origin | Interest | Match -
The Discovery of #LittleRedDots in the Local Universe - Signatures of Cool Gas Envelopes: https://arxiv.org/abs/2507.10659 -> A Black Hole Egg That Forgot to Hatch: https://aasnova.org/2026/01/13/a-black-hole-egg-that-forgot-to-hatch/
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Weekly Update from the Open Journal of Astrophysics – 04/10/2025
It’s Saturday again, so it’s time for a summary of the week’s new papers at the Open Journal of Astrophysics. Since the last update we have published five more papers, which brings the number in Volume 8 (2025) up to 146, and the total so far published by OJAp up to 381. At this rate Volume 8 will contain around 190 by the end of 2025.
Anyway, here are this week’s papers, starting with three published on Monday 29th September 2025.
The first paper is “Cosmic Multipoles in Galaxy Surveys II: Comparing Different Methods in Assessing the Cosmic Dipole” by Vasudev Mittal, Oliver T. Oayda and Geraint F. Lewis (U. Sydney, Australia). This is in the folder Cosmology and Nongalactic Astrophysics. It presents a comparison of methods for determining the number count dipole from cosmological surveys with a discussion of the implications for the known discordance with the CMB diple.
The overlay is here:
You can make this larger by clicking on it. The officially accepted version of this paper can be found on the arXiv here.
The second paper this week, also published on Monday 29th September, is “SDSS-C4 3028: the Nearest Blue Galaxy Cluster Devoid of an Intracluster Medium” by Shweta Jain (University of Kentucky, USA) and 11 others based in the USA, Australia and Korea. This describes a galaxy cluster with an unusually high fraction (about 63%) of star-forming galaxies which may be a result of ram pressure stripping; the article is in the folder Astrophysics of Galaxies.
The corresponding overlay is here:
You can find the officially accepted version on arXiv here.
The third one this week, published on also published on Monday 29th September but in the folder Earth and Planetary Astrophysics, is “Comparing the Architectures of Multiplanet Systems from Kepler, K2, and TESS Data” by Robert L Royer and Jason H. Steffen (University of Nevada, USA). This paper explores the trends seen in exoplanet survey data, including Kepler, TESS, and K2 including many planetary systems with multiple planets.
The overlay is here:
You can find the officially-accepted version on arXiv here.
The next one up is “Seeding Cores: A Pathway for Nuclear Star Clusters from Bound Star Clusters in the First Billion Years” by Fred Angelo Batan Garcia (Columbia University, USA), Massimo Ricotti (University of Maryland, USA) and Kazuyuki Sugimura (Hokkaido University, Japan). This paper was published on Thursday 2nd October in the folder Astrophysics of Galaxies. This is about modelling the formation of Nuclear Star Clusters using cosmological radiation-hydrodynamic simulations, with discussion of the implications for seeding supermassive black holes and the little red dots seen by JWST.
The corresponding overlay is here:
You can find the officially accepted version of this one on arXiv here.
The fifth and last one for this week, published on Friday 3rd October 2025, is “Efficient semi-analytic modelling of Pop III star formation from Cosmic Dawn to Reionization” by Sahil Hegde and Steven R. Furlanetto (University of Californi Los Angeles, USA). This is also in the folder marked Astrophysics of Galaxies. It uses a self-consistent analytic model to trace the formation of the first stars from their birth through the first billion years of the universe’s history. complementing semi-analytic and computational methods.
You can find the officially-accepted version of this paper on arxiv here.
That concludes the report for this week. I’ll post another update next Saturday.
#arXiv250308779v2 #arXiv250620654v3 #arXiv250719581v2 #arXiv250920651v1 #arXiv250922523v1 #AstrophysicsOfGalaxies #cosmicDipoles #CosmologyAndNonGalacticAstrophysics #DiamondOpenAccess #EarthAndPlanetaryAstrophysics #GalaxyCluster #galaxyFormation #galaxySurveys #JWST #Kepler #LittleRedDots #MultiplanetSystems #nuclearStarClusters #OpenAccessPublishing #OpenJournalOfAstrophysics #PopulationIIIStars #ramPressureStripping #SDSSC42028 #semiAnalyticGalaxyFormation #TheOpenJournalOfAstrophysics
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Not Just a Dot - the complex UV morphology and underlying properties of Little Red Dots: https://arxiv.org/abs/2411.14383 -> #LittleRedDots frequently reveal clumpy morphologies, and some of these also bear the hallmarks of active black holes: https://www.astronomie.nl/nieuws/en/little-red-dots-frequently-reveal-clumpy-morphologies-and-some-of-these-also-bear-the-hallmarks-of-active-black-holes-4687
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Schwarze Löcher, getarnt als Sterne? Astronomen postulieren neue Theorie zu rätselhaften " roten Punkten" im frühen Kosmos. #Astronomie #SchwarzeLoecher #JWST #LittleRedDots
https://www.scinexx.de/news/kosmos/schwarze-loecher-getarnt-als-sterne/ -
Lonely Little Red Dots - Challenges to the Active Galactic Nucleus Nature of #LittleRedDots through Their Clustering and Spectral Energy Distributions: https://iopscience.iop.org/article/10.3847/2041-8213/adf73d -> All Alone With No AGN to Call Home? New Results for Little Red Dots: https://aasnova.org/2025/08/29/all-alone-with-no-agn-to-call-home-new-results-for-little-red-dots/
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#LittleRedDots #EarlyGalaxies
"JWST fully solves the mystery of “Little Red Dots”"This plainly contradicts ☠️ the article 🔗https://www.astronomy.com/science/little-red-dots-are-still-a-big-mystery/ *Fully solves*? What's going on? 🤔
Perhaps a confirmation bias from "Start With a Bang"? This misleads the readers into thinking that all the problems are solved...
🔗https://bigthink.com/starts-with-a-bang/jwst-solves-mystery-little-red-dots/
