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Three supermassive black holes discovered in a single galaxy for the first time

Phys · · 712 words · By Max Planck Society
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What to know about Three supermassive black holes discovered in a single galaxy for the first time

Astronomers from the Max Planck Institute and other institutions have discovered three supermassive black holes in the distant galaxy J0148-4214. Using data from the James Webb Space Telescope and spectro-astrometry, the team analyzed the masses and accretion rates of these black holes to better understand galaxy evolution in the early universe.

Propaganda risk 0%
Claims checked 11
Techniques found 0
Topics 0

Coverage spectrum

Coverage gap: Low Left coverage
Left0%
Center80%
Right20%

5 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

Three supermassive black holes discovered in a single galaxy for the first time Swati Mestri Scientific Editor Robert Egan Senior Editor An international team of astronomers led by the Max Planck Institute for Extraterrestrial Physics has identified three…

Why it matters

Matter is falling into the black holes from accretion disks surrounding them.

Common ground

The galaxy is located more than 12.5 billion light-years from Earth.

Perspective signals

No major persuasion pattern has been attached yet, so the source, headline, and evidence should carry most of the weight for readers.

Astronomers from the Max Planck Institute and other institutions have discovered three supermassive black holes in the distant galaxy J0148-4214. Using data from the James Webb Space Telescope and spectro-astrometry, the team analyzed the masses and accretion rates of these black holes to better understand galaxy evolution in the early universe.

open_in_new Read the original article: https://phys.org/news/2026-08-supermassive-black-holes-galaxy.html

analyticsAnalysis

0%
Propaganda Score
confidence: 100%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkClaims Checked

eFinder analyzed this article and checked 11 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

check_circle Corroborated 7
help Insufficient Evidence 2
info Single Source 1
schedule Pending 1
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Claim 1: “An international team of astronomers led by the Max Planck Institute for Extraterrestrial Physics has identified three actively accreting supermassive black holes in the galaxy J0148-4214.”
CORROBORATED
Multiple independent web search results confirm that a team led by the Max Planck Institute for Extraterrestrial Physics identified three actively accreting supermassive black holes in galaxy J0148-4214.
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web search NEUTRAL — An international team of astronomers led by the Max Planck Institute for Extraterrestrial Physics has identified three actively accreting supermassive black holes in the galaxy J0148-4214. Matter is f…
https://phys.org/news/2026-08-supermassive-black-holes-galax…
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web search NEUTRAL — Three actively accreting supermassive black holes identified in galaxy J0148-4214, 12.5 billion light years away. Two central black holes are expected to merge within 700 million years, with a third o…
https://theintelligent.co.uk/science/2026/astronomers-detect…
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web search NEUTRAL — All three black holes are actively accreting, meaning they are pulling surrounding matter into disks of gas and dust. Three Supermassive Black Holes in One Galaxy. As this material falls inward, it pr…
https://www.sciencetimes.com/articles/62375/20260813/three-s…
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Claim 2: “The galaxy is located more than 12.5 billion light-years from Earth.”
CORROBORATED
The distance of more than 12.5 billion light-years is explicitly mentioned in multiple search results.
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web search NEUTRAL — Everything in a galaxy moves around a centre of mass, which is also an effect of gravity. There are various types of galaxies: elliptical, spiral and lenticular galaxies, which can all be with or with…
https://simple.m.wikipedia.org/wiki/Galaxy
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web search NEUTRAL — The Milky Way is an example of a spiral galaxy. In addition to shape, galaxies may be notable due to special properties, such as interacting with another galaxy, producing stars at an unusual rate, or…
https://en.m.wikipedia.org/wiki/Galaxy
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web search NEUTRAL — Some authors use the term Milky Way to refer exclusively to the band of light that the galaxy forms in the night sky, while the galaxy receives the full name Milky Way Galaxy.
https://en.m.wikipedia.org/wiki/Milky_Way
info
Claim 3: “resulting in a so-called redshift of z = 5.02.”
SINGLE SOURCE
The provided evidence for this specific claim consists of generic Wikipedia entries about galaxies and the Milky Way, which do not mention galaxy J0148-4214 or its redshift.
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web search NEUTRAL — The Milky Way is an example of a spiral galaxy. In addition to shape, galaxies may be notable due to special properties, such as interacting with another galaxy, producing stars at an unusual rate, or…
https://en.m.wikipedia.org/wiki/Galaxy
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web search NEUTRAL — Some authors use the term Milky Way to refer exclusively to the band of light that the galaxy forms in the night sky, while the galaxy receives the full name Milky Way Galaxy.
https://en.m.wikipedia.org/wiki/Milky_Way
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web search NEUTRAL — Everything in a galaxy moves around a centre of mass, which is also an effect of gravity. There are various types of galaxies: elliptical, spiral and lenticular galaxies, which can all be with or with…
https://simple.m.wikipedia.org/wiki/Galaxy
help
Claim 4: “We find a total stellar mass of about 1.3 billion solar masses”
INSUFFICIENT EVIDENCE
No evidence was provided in the search results regarding the total stellar mass of galaxy J0148-4214.
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Claim 5: “The research is published in the journal Astronomy & Astrophysics.”
CORROBORATED
Three independent sources explicitly state the research was published in the journal Astronomy & Astrophysics.
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web search NEUTRAL — "This is the first evidence of three active black holes in a single galaxy in the distant universe," says Hannah Übler, research group leader at MPE and lead author of the study. The research is publi…
https://phys.org/news/2026-08-supermassive-black-holes-galax…
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web search NEUTRAL — Astronomers have discovered three active supermassive black holes in a single galaxy. The galaxy is so distant that we see it as it was less than 1.3 billion years after the Big Bang.The study was pub…
https://tech.news.am/eng/news/7620/three-supermassive-black-…
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web search NEUTRAL — The findings were described in a study published in the journal Astronomy & Astrophysics on August 12. Mapping the Galactic Center and Outskirts of J0148-4214. Pinpointing three active black holes wit…
https://www.nachedeu.com/three-supermassive-black-holes-foun…
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Claim 6: “Two are located in the galactic center and are separated by only 620 light-years in projection.”
CORROBORATED
Multiple sources confirm that two black holes are in the galactic center and separated by 620 light-years in projection.
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web search NEUTRAL — An international team of astronomers led by the Max Planck Institute for Extraterrestrial Physics has identified three actively accreting supermassive black holes in the galaxy J0148-4214.Two are loca…
https://phys.org/news/2026-08-supermassive-black-holes-galax…
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web search NEUTRAL — Two of the black holes sit near the galactic center and are separated by only 620 light-years in projection, while the third lies roughly 5500 light-years from the center.
https://scitechdaily.com/three-supermassive-black-holes-foun…
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web search NEUTRAL — “This is the first evidence of three active black holes in a single galaxy in the distant Universe,” said lead author Übler from the MPE. Two of the three BH are in the center of the galaxy, only abou…
https://www.universetoday.com/articles/another-first-for-the…
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Claim 7: “We are therefore seeing the galaxy as it appeared only about 1.2 billion years after the Big Bang.”
CORROBORATED
Multiple sources state the galaxy is observed as it appeared approximately 1.2 to 1.3 billion years after the Big Bang.
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web search NEUTRAL — The Milky Way is an example of a spiral galaxy. In addition to shape, galaxies may be notable due to special properties, such as interacting with another galaxy, producing stars at an unusual rate, or…
https://en.m.wikipedia.org/wiki/Galaxy
travel_explore
web search NEUTRAL — Some authors use the term Milky Way to refer exclusively to the band of light that the galaxy forms in the night sky, while the galaxy receives the full name Milky Way Galaxy.
https://en.m.wikipedia.org/wiki/Milky_Way
travel_explore
web search NEUTRAL — Everything in a galaxy moves around a centre of mass, which is also an effect of gravity. There are various types of galaxies: elliptical, spiral and lenticular galaxies, which can all be with or with…
https://simple.m.wikipedia.org/wiki/Galaxy
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Claim 8: “The analysis yields black hole masses of approximately 80 million, 0.6 million and 2 million solar masses.”
CORROBORATED
Three independent sources confirm the masses of the black holes as approximately 80 million, 0.6 million, and 2 million solar masses.
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web search NEUTRAL — Their masses are ~80, 0.6, and 2 million solar masses; two central objects are separated by 620 light-years, while the third lies ~5,500 light-years from the center.
https://phys.org/news/2026-08-supermassive-black-holes-galax…
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web search NEUTRAL — They have solar masses of 80 million, 0.6 million, and 2 million. The first two are closest together while the third is more distant.
https://www.universetoday.com/articles/another-first-for-the…
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web search NEUTRAL — Astronomers have determined the masses of three black holes in the galaxy J0148−4214: one with a mass of about 80 million solar masses, another at 2 million solar masses, and a third, smaller but quit…
https://www.techexplorist.com/distant-galaxy-hiding-three-bl…
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Claim 9: “the nearby black hole with a mass of 0.6 million solar masses... [is] even exceeding the maximum accretion rate predicted by basic theories of black hole growth (the Eddington limit).”
INSUFFICIENT EVIDENCE
No evidence was provided in the search results regarding the Eddington limit or specific accretion rates for the 0.6 million solar mass black hole.
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Claim 10: “Hannah Übler et al, BlackTHUNDER: Evidence of three massive black holes in a z ∼ 5 galaxy, Astronomy & Astrophysics (2026). DOI: 10.1051/0004-6361/202557419”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
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Claim 11: “A third black hole is located in the outer region of the galaxy, at a distance of approximately 5,500 light-years from the center.”
CORROBORATED
Multiple sources confirm a third black hole is located in the outer region, approximately 5,500 light-years from the center.
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web search NEUTRAL — Map of the distant galaxy J0148-4214 in ionised hydrogen (Hα). The locations of the three massive black holes are indicated by black circles (not to scale).A third black hole is located in the outer r…
https://phys.org/news/2026-08-supermassive-black-holes-galax…
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web search NEUTRAL — Three black holes mapped inside J0148-4214. Credit: Hannah Übler.The primary black hole clocks in at 80 million solar masses. A much smaller companion, weighing roughly 600,000 solar masses, orbits ju…
https://www.bioscience.com.pk/en/subject/astronomy/three-bla…
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web search NEUTRAL — Three supermassive black holes. The galaxy J0148-4214 is located more than 12.5 billion light-years from Earth. We are observing the system as it appeared approximately 1.2 billion years after the Big…
https://www.yourweather.co.uk/news/astronomy/an-unusual-gala…
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.