Galaxy Collision
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NASA’s Chandra Spots Champagne Cluster Formed by a Massive Galaxy Collision
Discovered on New Year’s Eve 2020, the Champagne Cluster is a striking pair of colliding galaxy clusters revealed through combined X-ray and optical observations. NASA’s Chandra X-ray Observatory shows superheated gas stretched and distorted, exposing a massive cosmic collision hidden from visible light alone. Studied by UC Davis astronomers, t...
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NASA Spots Starquakes in a Red Giant Orbiting One of the Galaxy’s Quietest Black Holes
A red giant star orbiting a quiet black hole spins faster than expected, while internal vibrations reveal it is younger than its ancient chemistry suggests. These findings hint at a past stellar merger and challenge existing models of star evolution in low-metal environments. Future observations aim to confirm its complex cosmic history.
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Galaxy Collisions Found to Activate Supermassive Black Holes, Euclid Data Shows
Astronomers using ESA’s Euclid telescope and AI analysis have found that merging galaxies are significantly more likely to host active supermassive black holes. The gravitational chaos of a collision drives gas toward the galactic core, igniting AGN activity. This discovery strengthens the link between galaxy interactions and the energetic proces...
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Study Reveals The Mystery Behind Giant Radio Relics In The Universe
Based on these initial findings, the team further developed extremely high-resolution simulations called "shock-tubes."
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Flattened Dark Matter May Explain Mysterious Gamma-Ray Glow at Milky Way’s Core, Study Finds
Dark matter near the Milky Way’s center appears flattened, not spherical, according to new simulations. The discovery may explain a puzzling gamma-ray glow long observed by NASA’s Fermi telescope, reigniting theories that dark matter collisions produce high-energy radiation in the galaxy’s core
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JWST Finds Black Hole Between Galaxy Cores, Hinting at Rare Direct Collapse Birth
Using JWST, astronomers discovered a black hole between two galaxy cores in the Infinity Galaxy—possibly the first direct evidence of a black hole formed by gas collapse, not stellar death. This rare “heavy seed” black hole challenges standard models and could help explain how supermassive black holes appeared so soon after the Big Bang.
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"Cosmic Owl": James Webb Spots Rare Marvel Of Galaxy Collision
The Cosmic Owl provides insights into galaxy formation and growth, particularly in the early universe.
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James Webb Telescope Spots Rare ‘Cosmic Owl’ Formed by Colliding Galaxies
NASA’s James Webb Space Telescope has unveiled the “Cosmic Owl,” a jaw-dropping image of two colliding ring galaxies forming a structure that resembles an owl’s face. This double-ring formation is extraordinarily rare, and the event is shedding light on galaxy evolution, black hole dynamics, and rapid star formation. Led by Ph.D. student Mi...
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Most Distant Mini-Halo Discovered in Galaxy Cluster 10 Billion Light-Years Away
Astronomers have uncovered the most distant mini-halo ever detected, located around the galaxy cluster SpARCS1049, a staggering 10 billion light-years from Earth. Using the LOFAR radio telescope network, which spans eight European countries, researchers detected a faint, diffuse glow—evidence of a giant cloud of high-energy particles and magnetic...
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Two Galaxy Clusters That Collided Previously Are All Set To Smash Again
Despite their enormous distance, the galaxy clusters are gravitationally bound and slowly turning back for another high-speed impact.
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NASA’s Chandra Spots Champagne Cluster Formed by a Massive Galaxy Collision
Discovered on New Year’s Eve 2020, the Champagne Cluster is a striking pair of colliding galaxy clusters revealed through combined X-ray and optical observations. NASA’s Chandra X-ray Observatory shows superheated gas stretched and distorted, exposing a massive cosmic collision hidden from visible light alone. Studied by UC Davis astronomers, t...
-
NASA Spots Starquakes in a Red Giant Orbiting One of the Galaxy’s Quietest Black Holes
A red giant star orbiting a quiet black hole spins faster than expected, while internal vibrations reveal it is younger than its ancient chemistry suggests. These findings hint at a past stellar merger and challenge existing models of star evolution in low-metal environments. Future observations aim to confirm its complex cosmic history.
-
Galaxy Collisions Found to Activate Supermassive Black Holes, Euclid Data Shows
Astronomers using ESA’s Euclid telescope and AI analysis have found that merging galaxies are significantly more likely to host active supermassive black holes. The gravitational chaos of a collision drives gas toward the galactic core, igniting AGN activity. This discovery strengthens the link between galaxy interactions and the energetic proces...
-
Study Reveals The Mystery Behind Giant Radio Relics In The Universe
Based on these initial findings, the team further developed extremely high-resolution simulations called "shock-tubes."
-
Flattened Dark Matter May Explain Mysterious Gamma-Ray Glow at Milky Way’s Core, Study Finds
Dark matter near the Milky Way’s center appears flattened, not spherical, according to new simulations. The discovery may explain a puzzling gamma-ray glow long observed by NASA’s Fermi telescope, reigniting theories that dark matter collisions produce high-energy radiation in the galaxy’s core
-
JWST Finds Black Hole Between Galaxy Cores, Hinting at Rare Direct Collapse Birth
Using JWST, astronomers discovered a black hole between two galaxy cores in the Infinity Galaxy—possibly the first direct evidence of a black hole formed by gas collapse, not stellar death. This rare “heavy seed” black hole challenges standard models and could help explain how supermassive black holes appeared so soon after the Big Bang.
-
"Cosmic Owl": James Webb Spots Rare Marvel Of Galaxy Collision
The Cosmic Owl provides insights into galaxy formation and growth, particularly in the early universe.
-
James Webb Telescope Spots Rare ‘Cosmic Owl’ Formed by Colliding Galaxies
NASA’s James Webb Space Telescope has unveiled the “Cosmic Owl,” a jaw-dropping image of two colliding ring galaxies forming a structure that resembles an owl’s face. This double-ring formation is extraordinarily rare, and the event is shedding light on galaxy evolution, black hole dynamics, and rapid star formation. Led by Ph.D. student Mi...
-
Most Distant Mini-Halo Discovered in Galaxy Cluster 10 Billion Light-Years Away
Astronomers have uncovered the most distant mini-halo ever detected, located around the galaxy cluster SpARCS1049, a staggering 10 billion light-years from Earth. Using the LOFAR radio telescope network, which spans eight European countries, researchers detected a faint, diffuse glow—evidence of a giant cloud of high-energy particles and magnetic...
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Two Galaxy Clusters That Collided Previously Are All Set To Smash Again
Despite their enormous distance, the galaxy clusters are gravitationally bound and slowly turning back for another high-speed impact.
