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© 2026 Developments Today. All rights reserved.

These panels are Very Large Telescope images of the star S301 orbiting the Milky Way's SMBH, SgrA*. S301 is the fastest moving S star ever found, and also the closest to the black hole. The star can be used to measure the black hole's spin. S301's orbit is shown with an elliptical curve. In each frame, the solid curve shows the path that the star has already completed up to that point, whereas the dashed one marks the path it will follow afterwards. Image Credit: ESO/GRAVITY collaboration

Newly discovered S301 star could sharpen tests of relativity near the Milky Way’s black hole

Astronomers report a newly identified S-star, S301, orbiting extremely close to Sagittarius A*.
The star moves at about 25,000 kilometers per second and completes an orbit in 8.7 years.
Its close approach may make it sensitive to effects tied to the black hole’s spin.
Researchers see S301 as a promising new probe of spacetime near the Milky Way’s central black hole.

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DT Editorial Team·Aug 19, 2026·via universetoday.com

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Schematic illustration of the hierarchical structure of the Universe, from a galaxy group (a collection of galaxies) to an individual galaxy and the supermassive black hole at its center. Although a black hole is more than 100 million times smaller than the radius of its host galaxy, it plays a crucial role in the galaxy's central region. ©Tohoku University

Quasar Winds Reach Far Beyond Host Galaxy, XRISM Study Finds

Astronomers studied quasar H1821+643, about 3.4 billion light-years away.
Using XRISM, the team tracked ionized iron in hot gas around the quasar.
The observations suggest the quasar’s winds transport energy to about 300,000 light-years.
The finding points to black hole feedback affecting a wider galaxy-group environment than previously thought.

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DT Editorial Team·Jul 31, 2026·via universetoday.com

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NASA Webb Explores Family Tree of Newly Discovered Distant Objects

Webb study suggests a life cycle for 'little red dots'

NASA says a new study proposes that little red dots may be a temporary phase of active supermassive black holes.
The analysis builds on observations of spiral galaxy WISEA J123635.56+621424.2, nicknamed the Saguaro.
Researchers are trying to explain why little red dots were common at high redshift but become rare as the universe ages.

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DT Editorial Team·Jul 29, 2026·via science.nasa.gov

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GW250114, a powerful collision between two black holes recently observed in gravitational waves. Scientists are studying black holes to find out if they are "first-generation" or "second-generation" creations made during collisions. Credits: Image credit: Aurore Simonnet (SSU/EdEon)/LVK/URI

Black Hole Mergers May Be Happening in Chains

Researchers are using gravitational-wave signals to test whether some black holes are products of earlier mergers.
Spin is a key clue because merger remnants are expected to retain stronger rotational signatures.
The emerging data suggest repeated black hole mergers may make up a meaningful share of observed events.

DE

DT Editorial Team·Jul 27, 2026·via universetoday.com

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Artist's depiction of a stellar black hole in a binary system. Credit - ESO/L. Calçada/M.Kornmesser

A Black Hole Probe Is Still Fiction, but Researchers Are Sketching the Requirements

A new preprint examines requirements for sending a gram-scale probe to a nearby stellar-mass black hole.
Researchers argue the Milky Way may contain many isolated black holes that remain undetected.
The concept depends first on discovering a sufficiently nearby target, potentially within a few dozen light-years.

DE

DT Editorial Team·Jul 26, 2026·via universetoday.com

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The Black Hole at the Center of the super-giant elliptical galaxy M87. Credit: Event Horizon Telescope Collaboration

New M87 Black Hole Map Reveals How Emission Changes With Distance

Researchers produced the first spatially resolved dual-frequency spectral study of the M87 black hole.
The analysis combined 1.3 mm and 3.5 mm observations from the EHT and GMVA.
The inner region shows signs of synchrotron self-absorption, while outer regions appear more optically thin.
The work offers a new method for probing plasma conditions around a supermassive black hole.

DE

DT Editorial Team·Jul 25, 2026·via universetoday.com

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Astronomers found Omega Centauri’s first stellar-mass black hole, which has a visible star companion that is shown in greater detail. Credit: ESA/NASA/MPIA/STScI

Hubble and Webb find Omega Centauri’s first stellar-mass black hole

Astronomers confirmed the first stellar-mass black hole in Omega Centauri.
The result relied on Hubble data from 2002 to 2023 plus Webb NIRCam observations.
The object, oMEGACat BH-2, was found through astrometric measurements of a visible star’s motion.
The discovery supports models suggesting Omega Centauri should host many stellar-mass black holes.

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DT Editorial Team·Jul 24, 2026·via universetoday.com

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This artist's illustration shows a supermassive black hole (SMBH) tearing apart a star that got too close in a tidal disruption event. These events flare brightly, making otherwise invisible black holes visible. Astrophysicists want to find more of these events across cosmic time so they can understand how SMBH have become so massive. The upcoming Nancy Grace Roman Space Telescope will find many more of them. Image Credit: NASA, Ralf Crawford (STScI)

Roman Space Telescope Could Reveal Ancient Black Holes Through Stellar Destruction

A new forecast study says Roman could detect many more tidal disruption events across the universe.
Those flares can reveal lower-mass supermassive black holes that are otherwise difficult to detect.
A larger TDE sample could help test models of early black hole seeding and growth.

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DT Editorial Team·Jul 17, 2026·via universetoday.com

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Artist's portrayal of a black hole in the Milky Way Galaxy (Credit : Ute Kraus)

Black holes can flare again years after swallowing a star

A team monitored 31 tidal disruption events with the Very Large Array.
Some black holes produced delayed radio flares months or years after the original stellar disruption.
The radio glow likely comes from expelled material colliding with surrounding gas.
Researchers may be able to predict later radio activity from earlier visible-light differences.

DE

DT Editorial Team·Jun 29, 2026·via universetoday.com

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Polarised emission of the black hole at the heart of M87. The lines mark the orientation of polarisation, which is related to the magnetic field around the shadow of the black hole (Credit : EHT Collaboration)

Black hole merger signal offers a new view of the event horizon

Researchers used the unusually strong gravitational-wave event GW250114 to analyze black hole physics near the event horizon.
The team says it isolated faint “direct waves” that carry information from the final instant before the merger completed.
The analysis reportedly yielded estimates of the remnant black hole’s spin and surface gravity strength.
If replicated, the method could turn future gravitational-wave detections into stronger tests of gravity in extreme conditions.

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DT Editorial Team·Jun 28, 2026·via universetoday.com

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First ever image of a black hole, taken by the Event Horizon Telescope. Credit - EHT Collaboration

Solar Gravitational Lens Study Expands Targets Beyond Exoplanets

A new arXiv preprint says the Solar Gravitational Lens could study bright compact objects, not just exoplanets.
The paper highlights white dwarfs and black holes as targets less constrained by photon starvation.
Broadening the target list could strengthen the scientific case for a future SGL mission.

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DT Editorial Team·Jun 23, 2026·via universetoday.com

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Astronomers at MIT and elsewhere have detected a quasar flickering from the very early universe. This artist’s concept illustrates a quasar accretion disk and a jet of superheated material streaming out to space. Credit: NASA/JPL-Caltech

Earliest flickering quasar yet seen challenges early black hole theories

Astronomers detected flickering from quasar J0439+1634 in the early universe.
The quasar is seen as it existed about 850 million years after the Big Bang.
Its variability suggests a flat accretion disk, unusual for such an early epoch.
The finding complicates theories of how supermassive black holes formed so quickly.

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DT Editorial Team·Jun 23, 2026·via universetoday.com

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Image of the Gamma Ray Sky according to the Fermi Large Area Telescope. Credit - NASA/DOE/Fermi LAT Collaboration

Gamma-Ray Background Study Tightens the Case Against Asteroid-Mass Primordial Black Holes

Researchers modeled the gamma-ray signature expected from asteroid-mass primordial black holes.
The analysis compares that prediction with the diffuse extragalactic gamma-ray background.
The reported result narrows the case for this mass range as a dark matter candidate.

DE

DT Editorial Team·Jun 22, 2026·via universetoday.com

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Webb's view of galaxy cluster Abell S1063, whose gravity magnifies the little red dot GLIMPSE-17775 (boxed, lower right). The curved red arcs are lensed background galaxies (Credit : NASA, ESA, CSA, Vasily Kokorev (UT Austin); Image Processing: Alyssa Pagan (STScI))

JWST may have solved the little red dots mystery

Webb observed little red dot GLIMPSE-17775 with the deepest spectrum yet for this class.
Gravitational lensing by Abell S1063 boosted the effective observing power.
The data support a model of a growing black hole hidden inside dense gas.

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DT Editorial Team·Jun 15, 2026·via universetoday.com

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An image of the core region of Messier 87, a supermassive black hole, processed from a sparse array of radio telescopes known as the EHT with colours indicating brightness temperature (Credit : Event Horizon Telescope)

Black Hole Topology Offers a New Way to Classify Cosmic Extremes

Black holes have temperature and entropy, not just gravity.
Researchers build thermodynamic landscapes using variables such as temperature, entropy, and pressure.
Zero points in those landscapes can be assigned topological charges.
Different black holes, including Schwarzschild and Reissner-Nordstrom types, fall into different topological classes.

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DT Editorial Team·Jun 12, 2026·via universetoday.com

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A star in the Large Magellanic Cloud briefly got brighter, perhaps a microlensing event (Credit : NASA/Ames Research Centre)

Mysterious microlensing flash points to rogue world or primordial black hole

Astronomers detected a one-hour microlensing event in the Large Magellanic Cloud.
The lensing object may have a mass about three times that of Earth’s Moon.
Possible explanations include a rogue planet, an extragalactic planet, or a primordial black hole.

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DT Editorial Team·May 28, 2026·via universetoday.com

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Universe's most distant 'Hot DOG' yet may owe extreme infrared glow to polar dust, Webb reveals

Webb Study Points to Polar Dust as a Key Driver of a Distant Hyperluminous Galaxy

Researchers analyzed W2246−0526 using multiwavelength data that included Webb observations.
The study suggests polar dust, not only the AGN torus, may explain the galaxy’s extreme infrared emission.
W2246−0526 is the most distant and luminous known Hot DOG discovered so far.

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DT Editorial Team·May 25, 2026·via phys.org

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This artist's illustration shows a supermassive black hole (SMBH) in the early Universe. The JWST found galaxies in the very early Universe that were extremely massive compared to their host galaxies. New research has an explanation for those puzzling findings. Image Credit: NOIRLab/NSF/AURA/J. da Silva (Spaceengine)

A new theory aims to explain why JWST keeps finding oversized black holes in the early universe

JWST found early galaxies with black holes far larger than expected relative to host mass.
A new paper proposes an explanation for these overmassive black hole galaxies.
The findings challenge standard ideas of synchronized galaxy and black hole growth.

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DT Editorial Team·May 19, 2026·via universetoday.com

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The left-hand side of this artist's illustration shows the distant quasar TXS 2005+403 as it really appears, with its bright accretion disk and its powerful astrophysical jets blasting radiation into the cosmos. The right-hand side shows how intervening turbulent gas blurs and distorts the light. New research has figured out exactly how that turbulence affects images of the Milky Way's supermassive black hole. Image Credit: Melissa Weiss/CfA

Milky Way Turbulence Is Blurring Distant Quasars and Complicating Black Hole Imaging

Astronomers studied the distant blazar TXS 2005+403 over about a decade.
They found additional blurring caused by turbulence in the Milky Way’s interstellar medium.
The result could help improve future images of the galaxy’s central black hole.

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DT Editorial Team·May 18, 2026·via universetoday.com

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Gravitational lens reveals the presence of dark matter (Credit : ESA/Hubble)

Scientists Propose a New Way to Hunt Dark Matter in Gravitational Waves

An MIT-led team modeled how ultralight dark matter could alter gravitational waves from black hole mergers.
The mechanism relies on superradiance building dense dark matter clouds around spinning black holes.
Researchers screened 28 public LIGO, Virgo, and KAGRA signals and found one event that differed from vacuum-merger expectations.

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DT Editorial Team·May 16, 2026·via universetoday.com

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