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Abell 2744 - From NASA Marshall Space Flight Center - https://flic.kr/p/2jEgvxh
Galaxy clusters are the largest objects in the universe held together by gravity. They contain enormous amounts of superheated gas, with temperatures of tens of millions of degrees, which glows brightly in X-rays, and can be observed across millions of light years between the galaxies. This image of the Abell 2744 galaxy cluster combines X-rays from Chandra (diffuse blue emission) with optical light data from Hubble (red, green, and blue). Image credit: NASA/CXC; Optical: NASA/STScI #NASA #MarshallSpaceFlightCenter #MSFC #Marshall #chandraxrayobservatory #ChandraXRay #cxo #chandra #astronomy #space #astrophysics #nasamarshallspaceflightcenter #solarsystemandbeyond #galaxy #galaxycluster #GoddardSpaceFlightCenter #GSFC #Hubble #HST #HubbleSpaceTelescope Read more More about the Chandra X-ray Observatory NASA Media Usage Guidelines
September 12, 2025 at 4:00 PM
nasapodsky.bsky.social
Astronomy Picture from 15/06/2000

X-rays From The Perseus Cluster Core

Source: https://apod.nasa.gov/apod/ap000615.htm<a href="/hashtag/PerseusCluster" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#PerseusClusters#GalaxyClustery#ChandraXrayn#SupermassiveBlackHolel#Spacee#Astronomys#Cosmologyo#NGC1275##XrayAstronomys#DeepSpaceeepSpace
Chandra X-ray Observatory image of the Perseus galaxy cluster, showcasing the cannibal galaxy Perseus A (NGC 1275) and its supermassive black hole. Red, green, and blue represent low, medium, and high-energy X-rays. Notice the magnetic bubbles and the x-ray shadow of a smaller galaxy falling into Perseus A. The cluster is 320 million light-years away.
February 13, 2025 at 9:12 PM
astronomybot.bsky.social
A recent study has used data from the Chandra X-ray Observatory to identify a population of previously unknown black holes in a distant galaxy cluster. These findings add to our understanding of the distribution and evolution of black holes across cosmic structures. #BlackHoles #GalaxyCluster #Ch...
May 5, 2025 at 12:00 AM
purescience.news
Hubble Snaps Galaxy Cluster’s Portrait #Science #Space #Astronomy #HubbleTelescope #GalaxyCluster #Astrophotography
Hubble Snaps Galaxy Cluster’s Portrait
This NASA/ESA Hubble Space Telescope image features the galaxy cluster Abell 209. ESA/Hubble & NASA, M. Postman, P. Kelly A massive, spacetime-warping cluster of galaxies is the setting of today’s NASA/ESA Hubble...
purescience.news
July 19, 2025 at 12:42 AM
nasapodsky.bsky.social
Astronomy Picture from 23/08/2015

Giant Cluster Bends, Breaks Images

Source: https://apod.nasa.gov/apod/ap150823.htm<a href="/hashtag/GravitationalLens" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#GravitationalLenso#GalaxyClustery#HubbleSpaceTelescopee#CosmicLenss#SpacePhenomenah#Astronomys#Astrophysicso#DeepSpacee#GalaxyFormationo#CL0024+1654024+1654
Hubble Space Telescope image of galaxy cluster CL0024+1654 showcasing gravitational lensing. Multiple images of a beaded, blue, ring-like background galaxy are visible around the central yellow galaxies of the cluster, due to the cluster's gravity bending light. At least 33 images of 11 background galaxies are visible in this image demonstrating the power of gravitational lensing in deep space.
March 10, 2025 at 10:13 PM
nasapodsky.bsky.social
Astronomy Picture from 22/07/1999

Cosmic Collisions in a Galaxy Cluster

Source: https://apod.nasa.gov/apod/ap990722.htm<a href="/hashtag/GalaxyCluster" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#GalaxyClustery#HubbleSpaceTelescopee#MS105403M#GalaxyCollisionsl#DeepSpacee#Cosmologyo#Astronomys#Spacey#UniverseU#NASAs#ESAASA #ESA
Hubble Space Telescope image of galaxy cluster MS1054-03, located 8 billion light-years away. The image shows hundreds of galaxies, with insets highlighting examples of colliding galaxies merging to form larger ones. This cluster contains the largest number of colliding galaxies ever found.
March 3, 2025 at 5:12 PM
astronomybot.bsky.social
...#GalaxyCluster #GalaxyFormation #LowMassGalaxies #GalaxyEvolution #Cosmology #EarlyUniverse #DarkMatter #Astrophysics
January 12, 2025 at 1:00 AM
astronomybot.bsky.social
Did you know that some galaxies are almost entirely dark matter? These "dark galaxies" are incredibly difficult to detect because they contain very little visible matter, like stars and gas. Their existence is inferred through gravitational effects on nearby galaxies. #DarkMatter #GalaxyCluster...
March 19, 2025 at 10:00 AM
purescience.news
Invisible Storm Lights Up Galaxy Cluster With Record-Breaking Radio Glow #Science #Space #Astronomy #GalaxyCluster #RadioAstronomy #CosmicPhenomena
Invisible Storm Lights Up Galaxy Cluster With Record-Breaking Radio Glow
Astronomers have stumbled upon the largest-ever cloud of energetic particles surrounding a galaxy cluster, stretching nearly 20 million light-years, rewriting what we thought we knew about how particles...
purescience.news
June 16, 2025 at 11:00 AM
astronomybot.bsky.social
...of galaxy clusters. #GalaxyCluster #DarkMatter #Cosmology
June 6, 2025 at 8:00 PM
purescience.news
Largest cloud of energetic cosmic particles engulfs colossal galaxy cluster #Science #Space #Astrophysics #cosmicparticles #galaxycluster #astrophysics
Largest cloud of energetic cosmic particles engulfs colossal galaxy cluster
Astronomers have found a gigantic cosmic structure which defies understanding. The object is a cloud of energetic particles – the largest ever found. The cloud is so large that it surrounds a massive...
purescience.news
June 12, 2025 at 8:45 PM
nasapodsky.bsky.social
Astronomy Picture from 28/03/2002

Centaurus Galaxy Cluster in X-Rays

Source: https://apod.nasa.gov/apod/ap020328.htm<a href="/hashtag/CentaurusCluster" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#CentaurusClusters#GalaxyClustery#ChandraXrayn#Spacey#Astronomys#Cosmologyo#XrayAstronomys#HotGas #DeepSpacee#UniverseUniverse
False-color X-ray image of the Centaurus Cluster's core, showcasing a massive, twisted plume of 10+ million degree gas spanning 70,000 light-years. Data from the Chandra X-ray Observatory reveals temperature variations (red-cool to blue-hot). The plume's mass is equivalent to a billion suns, possibly a wake from a moving central galaxy.
March 15, 2025 at 11:12 PM
geophotographer.org
A massive galaxy cluster 9.2 billion light years away has been mapped in detail. Its extreme distance and size help scientists trace how the largest structures in the universe came together over time.
🧪🔭
#GalaxyCluster
#Cosmology
#DeepSpace

Paper
arxiv.org/abs/2505.05415
Record-breaking cosmic structure discovered in colossal galaxy cluster
Astronomers have discovered the largest known cloud of energetic particles surrounding a galaxy cluster—spanning nearly 20 million light-years. The finding challenges long-standing theories about how ...
phys.org
June 10, 2025 at 9:46 PM
nasapodsky.bsky.social
Astronomy Picture from 22/01/1997

Galaxy Cluster A2199
Credit:

Source: https://apod.nasa.gov/apod/ap970122.ht<a href="/hashtag/Abell2199" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#Abell2199A#GalaxyClusterx#DarkMattera#CosmologyC#AstronomyA#Spacem#Galaxies##Astrophysicsr#DeepSpaceD#Universe##Science #Science
Image of Abell 2199, a massive galaxy cluster containing thousands of galaxies. The light from this cluster has traveled 50 million years to reach Earth. The image highlights the mystery of dark matter, which dominates the cluster's mass despite being invisible.
June 10, 2025 at 12:31 PM
nemethstarproductions.eu
(2/2) The first images of Euclid have been released by ESA. Review the Live Coverage here: ticker.nemethstarproductions.eu?page_id=1168 #ESAEuclid #Euclid #DarkEnergy #universe #ESA #galaxyCluster
November 7, 2023 at 6:21 PM
nasapodsky.bsky.social
Astronomy Picture from 02/11/2023

The Fornax Cluster of Galaxies

Source: https://apod.nasa.gov/apod/ap231102.htm<a href="/hashtag/FornaxCluster" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#FornaxClusterx#GalaxyClustery#EllipticalGalaxiesG#SpiralGalaxya#NGC1365##NGC1399##NGC1404##DeepSpacee#Astrophotographyt#Cosmologyo#Spacey#Astronomys#UniverseU#GalaxiesGalaxies
A stunning image of the Fornax Cluster, showcasing a vast collection of galaxies 62 million light-years away. Dominated by elliptical galaxies NGC 1399 and NGC 1404 near the center, the image also highlights the striking barred spiral galaxy NGC 1365 in the upper right. Countless other galaxies are visible as yellowish splotches across this wide field-of-view.
June 9, 2025 at 8:22 AM
astronomybot.bsky.social
A recent study has used radio telescope data to map the distribution of neutral hydrogen gas in a distant galaxy cluster, revealing clues about the cluster's formation and evolution and the role of interstellar gas in galaxy growth. #GalaxyCluster #HydrogenGas #RadioAstronomy
April 27, 2025 at 6:00 PM
astronomybot.bsky.social
... #DarkMatter #GalaxyCluster #DarkMatterDistribution #DarkMatterHalo #GroundBasedTelescope #Cosmology #Astrophysics #Astronomy #Galaxy

February 25, 2025 at 10:00 PM
nasapodsky.bsky.social
Astronomy Picture from 11/04/2018

Fortuitous Flash Candidate for the Farthest Star Yet Seen

Source: https://apod.nasa.gov/apod/ap180411.htm<a href="/hashtag/FarthestStar" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#FarthestStarh#HubbleSpaceTelescopee#GravitationalLensingl#Icarus #BlueSupergiantp#RedshiftR#Cosmologyo#Astrophysicso#Spaces#Astronomys#GalaxyClusteryCluster
Hubble Space Telescope image comparison showing the appearance of Icarus, a potentially record-breaking distant star, between 2011 and 2016. The left panel shows a galaxy cluster; the right panels show close-ups highlighting a new light source (Icarus) that may be a star magnified by gravitational lensing, appearing much brighter than it would without the lensing effect. The source's location is marked by an arrow in each close-up.
April 13, 2025 at 6:19 AM