Dwarf Galaxies
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Astronomers Discover Rogue Black Hole Racing Through a Distant Dwarf Galaxy
Astronomers have discovered a rogue intermediate-mass black hole speeding through a dwarf galaxy 230 million light-years away. Unlike typical galactic centres, this displaced object is accreting material and blasting out jets, suggesting black holes can grow “offsite”. The finding offers rare evidence of elusive intermediate black holes and may...
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Ursa Major III May Be a Star Cluster, Not a Dark-Matter Dwarf Galaxy
Astronomers have long thought Ursa Major III, also called UNIONS 1, was a dark-matter-packed dwarf galaxy. But new simulations suggest it may instead be a compact star cluster bound by black holes and neutron stars. Located 30,000 light-years away, Ursa Major III contains just ~60 visible stars yet shows puzzlingly high stellar velocities. The new ...
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NASA’s Hubble and Webb Discover Bursting Star Formation in Small Magellanic Cloud
NASA’s Hubble and Webb telescopes have captured spectacular images of NGC 460 and NGC 456, two star clusters in the Small Magellanic Cloud. These young, open clusters are filled with massive, hot stars that trigger new star formation by carving nebulae. The findings provide insights into early universe conditions and interstellar medium behaviour...
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Dark Dwarfs: New Star-Like Objects May Reveal Nature of Dark Matter
Scientists have proposed a new class of stellar objects called “dark dwarfs,” sub-stellar bodies that may glow faintly from the energy released by annihilating dark matter particles. Found near the galaxy’s core, these objects could hold crucial clues about the elusive nature of dark matter. Powered not by fusion but by WIMP-like particles, d...
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Hubble Unveils Galactic ‘Cotton Candy’ in the Large Magellanic Cloud
NASA’s Hubble Space Telescope has captured a breathtaking image of glowing gas and dust in the Large Magellanic Cloud, a dwarf galaxy orbiting the Milky Way. The colorful filaments—nicknamed “galactic cotton candy”—highlight active star-forming regions. Taken with five filters across ultraviolet to infrared wavelengths, the image reveals ...
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New Study Sets Stronger Mass Limit on Ultralight Bosonic Dark Matter
A groundbreaking study has set a new lower bound on the mass of ultralight bosonic dark matter particles—2.2 × 10⁻²¹ eV. Using stellar motion data from the dwarf galaxy Leo II and advanced computational models, the team ruled out lighter masses that cannot form observed structures. This challenges the popular fuzzy dark matter theory and pav...
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Smallest Galaxy Ever Found: Andromeda XXXV Defies Cosmic Evolution Models
Astronomers have discovered Andromeda XXXV, the smallest and faintest known galaxy, located 3 million light-years away. It challenges existing models of galaxy formation, as similar small galaxies were thought to be destroyed in the early universe. Researchers are studying how it retained conditions for star formation despite harsh cosmic environme...
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Strange Fast Radio Bursts Emerge from an Ancient Dead Galaxy, Baffling Scientists
Scientists have detected mysterious fast radio bursts (FRBs) from the outskirts of an 11 billion-year-old dead galaxy. This discovery challenges the belief that FRBs primarily originate from young, star-forming galaxies. Researchers suspect the bursts may result from colliding stars or a collapsing white dwarf. The Canadian Hydrogen Intensity Mappi...
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Astronomers Discover Largest Collection of Missing Link Black Holes in Dwarf Galaxies
Astronomers have uncovered 2,500 dwarf galaxies containing active black holes using DESI data. This marks the largest-ever discovery of intermediate-mass black holes, with 300 new candidates identified. These findings could help scientists understand how black holes evolve from stellar-mass to supermassive sizes. The research, based on 410,000 gala...
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Scientists Discover Two New Supernova Remnants in a Surprising Location
Two previously unknown supernova remnants, J0624-6948 and J0614-7251, have been detected in the outskirts of the Large Magellanic Cloud. Their unexpected location suggests a higher-than-expected concentration of ionised gas, raising new questions about galactic evolution. Scientists propose that gravitational interactions between the Milky Way and ...
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Astronomers Observe Black Hole Reactivate, Emitting Jets of Plasma
A supermassive black hole at the center of galaxy 1ES 1927+654 has been observed reactivating after a quiet period. Jets of hot gas were released from both sides of the black hole, surprising astronomers. Researchers speculate that a white dwarf star in close orbit may be interacting with the black hole, providing key insights into cosmic behavior....
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Five Dwarf Galaxies Found in a Rare Alignment, Challenges Current Cosmic Models
A rare alignment of five dwarf galaxies, positioned around 117 million light-years away, has been discovered by astronomers. This grouping, which challenges existing models of galaxy formation, shows active star formation despite their small sizes. The galaxies, labelled D1 to D5, exhibit unique characteristics, including shared rotational motion a...
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NSF NOIRLab's Dark Energy Camera Showcases Stunning View of Antlia Cluster’s Galaxies
The Antlia Cluster, located approximately 130 million light-years away in the Antlia constellation, has been imaged in remarkable detail by the Dark Energy Camera. This cluster, home to over 230 galaxies, features a variety of types including lenticular, irregular, and dwarf galaxies. Observations suggest that the two dominant elliptical galaxies, ...
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Astronomers Spot New Cosmic Explosions 100 Times Brighter Than the Sun
Astronomers have discovered a new class of cosmic explosions, known as 'millinovas,' which are 100 times brighter than the Sun. These events, first identified in 2023, were observed in the Large and Small Magellanic Clouds, two satellite galaxies of the Milky Way. The millinovas are thought to occur when white dwarfs feed off a companion star, prod...
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Hubble Space Telescope Captures Rare Edge-On View of a Spiral Galaxy Located Millions of Light-Years Away
NASA and ESA’s Hubble Space Telescope captured an edge-on view of spiral galaxy UGC 10043, located around 150 million light-years away. Displaying its prominent dust lanes and unique bulge, this galaxy image highlights regions of active star formation. Captured in 2000 and 2023, the composite image uses various light wavelengths to detail the str...
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Astronomers Discover Rogue Black Hole Racing Through a Distant Dwarf Galaxy
Astronomers have discovered a rogue intermediate-mass black hole speeding through a dwarf galaxy 230 million light-years away. Unlike typical galactic centres, this displaced object is accreting material and blasting out jets, suggesting black holes can grow “offsite”. The finding offers rare evidence of elusive intermediate black holes and may...
-
Ursa Major III May Be a Star Cluster, Not a Dark-Matter Dwarf Galaxy
Astronomers have long thought Ursa Major III, also called UNIONS 1, was a dark-matter-packed dwarf galaxy. But new simulations suggest it may instead be a compact star cluster bound by black holes and neutron stars. Located 30,000 light-years away, Ursa Major III contains just ~60 visible stars yet shows puzzlingly high stellar velocities. The new ...
-
NASA’s Hubble and Webb Discover Bursting Star Formation in Small Magellanic Cloud
NASA’s Hubble and Webb telescopes have captured spectacular images of NGC 460 and NGC 456, two star clusters in the Small Magellanic Cloud. These young, open clusters are filled with massive, hot stars that trigger new star formation by carving nebulae. The findings provide insights into early universe conditions and interstellar medium behaviour...
-
Dark Dwarfs: New Star-Like Objects May Reveal Nature of Dark Matter
Scientists have proposed a new class of stellar objects called “dark dwarfs,” sub-stellar bodies that may glow faintly from the energy released by annihilating dark matter particles. Found near the galaxy’s core, these objects could hold crucial clues about the elusive nature of dark matter. Powered not by fusion but by WIMP-like particles, d...
-
Hubble Unveils Galactic ‘Cotton Candy’ in the Large Magellanic Cloud
NASA’s Hubble Space Telescope has captured a breathtaking image of glowing gas and dust in the Large Magellanic Cloud, a dwarf galaxy orbiting the Milky Way. The colorful filaments—nicknamed “galactic cotton candy”—highlight active star-forming regions. Taken with five filters across ultraviolet to infrared wavelengths, the image reveals ...
-
New Study Sets Stronger Mass Limit on Ultralight Bosonic Dark Matter
A groundbreaking study has set a new lower bound on the mass of ultralight bosonic dark matter particles—2.2 × 10⁻²¹ eV. Using stellar motion data from the dwarf galaxy Leo II and advanced computational models, the team ruled out lighter masses that cannot form observed structures. This challenges the popular fuzzy dark matter theory and pav...
-
Smallest Galaxy Ever Found: Andromeda XXXV Defies Cosmic Evolution Models
Astronomers have discovered Andromeda XXXV, the smallest and faintest known galaxy, located 3 million light-years away. It challenges existing models of galaxy formation, as similar small galaxies were thought to be destroyed in the early universe. Researchers are studying how it retained conditions for star formation despite harsh cosmic environme...
-
Strange Fast Radio Bursts Emerge from an Ancient Dead Galaxy, Baffling Scientists
Scientists have detected mysterious fast radio bursts (FRBs) from the outskirts of an 11 billion-year-old dead galaxy. This discovery challenges the belief that FRBs primarily originate from young, star-forming galaxies. Researchers suspect the bursts may result from colliding stars or a collapsing white dwarf. The Canadian Hydrogen Intensity Mappi...
-
Astronomers Discover Largest Collection of Missing Link Black Holes in Dwarf Galaxies
Astronomers have uncovered 2,500 dwarf galaxies containing active black holes using DESI data. This marks the largest-ever discovery of intermediate-mass black holes, with 300 new candidates identified. These findings could help scientists understand how black holes evolve from stellar-mass to supermassive sizes. The research, based on 410,000 gala...
-
Scientists Discover Two New Supernova Remnants in a Surprising Location
Two previously unknown supernova remnants, J0624-6948 and J0614-7251, have been detected in the outskirts of the Large Magellanic Cloud. Their unexpected location suggests a higher-than-expected concentration of ionised gas, raising new questions about galactic evolution. Scientists propose that gravitational interactions between the Milky Way and ...
-
Astronomers Observe Black Hole Reactivate, Emitting Jets of Plasma
A supermassive black hole at the center of galaxy 1ES 1927+654 has been observed reactivating after a quiet period. Jets of hot gas were released from both sides of the black hole, surprising astronomers. Researchers speculate that a white dwarf star in close orbit may be interacting with the black hole, providing key insights into cosmic behavior....
-
Five Dwarf Galaxies Found in a Rare Alignment, Challenges Current Cosmic Models
A rare alignment of five dwarf galaxies, positioned around 117 million light-years away, has been discovered by astronomers. This grouping, which challenges existing models of galaxy formation, shows active star formation despite their small sizes. The galaxies, labelled D1 to D5, exhibit unique characteristics, including shared rotational motion a...
-
NSF NOIRLab's Dark Energy Camera Showcases Stunning View of Antlia Cluster’s Galaxies
The Antlia Cluster, located approximately 130 million light-years away in the Antlia constellation, has been imaged in remarkable detail by the Dark Energy Camera. This cluster, home to over 230 galaxies, features a variety of types including lenticular, irregular, and dwarf galaxies. Observations suggest that the two dominant elliptical galaxies, ...
-
Astronomers Spot New Cosmic Explosions 100 Times Brighter Than the Sun
Astronomers have discovered a new class of cosmic explosions, known as 'millinovas,' which are 100 times brighter than the Sun. These events, first identified in 2023, were observed in the Large and Small Magellanic Clouds, two satellite galaxies of the Milky Way. The millinovas are thought to occur when white dwarfs feed off a companion star, prod...
-
Hubble Space Telescope Captures Rare Edge-On View of a Spiral Galaxy Located Millions of Light-Years Away
NASA and ESA’s Hubble Space Telescope captured an edge-on view of spiral galaxy UGC 10043, located around 150 million light-years away. Displaying its prominent dust lanes and unique bulge, this galaxy image highlights regions of active star formation. Captured in 2000 and 2023, the composite image uses various light wavelengths to detail the str...
