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Groups & Clusters of Galaxies :: Vast clouds of hot gas embedded with numerous galaxies.

Image Date Title Org.
--2024--
NASA's Chandra Catches 'Death Star' Black Holes in Action 22 May 24 NASA's Chandra Catches 'Death Star' Black Holes in Action NASA/CXC 
NASA's Chandra Identifies an Underachieving Black Hole 21 Mar 24 NASA's Chandra Identifies an Underachieving Black Hole NASA/CXC 
Black Hole Fashions Stellar Beads on a String 21 Feb 24 Black Hole Fashions Stellar Beads on a String NASA/CXC 
Astronomers Find Spark of Star Birth Across Billions of Years 11 Jan 24 Astronomers Find Spark of Star Birth Across Billions of Years NASA/CXC 
--2023--
NASA Telescopes Discover Record-Breaking Black Hole 06 Nov 23 NASA Telescopes Discover Record-Breaking Black Hole NASA/CXC 
Unexpectedly Calm and Remote Galaxy Cluster Discovered 20 Jul 23 Unexpectedly Calm and Remote Galaxy Cluster Discovered NASA/CXC 
Chandra Helps Astronomers Discover a Surprisingly Lonely Galaxy 08 Mar 23 Chandra Helps Astronomers Discover a Surprisingly Lonely Galaxy NASA/CXC 
--2022--
NASA's Chandra Finds Galaxy Cluster Collision on a 13 Oct 22 NASA's Chandra Finds Galaxy Cluster Collision on a "WHIM" NASA/CXC 
Chandra Shows Giant Black Hole Spins Slower Than Its Peers 30 Jun 22 Chandra Shows Giant Black Hole Spins Slower Than Its Peers NASA/CXC 
10 Jan 22 "Mini" Monster Black Hole Could Hold Clues to Giant's Growth NASA/CXC 
--2021--
Astronomers Spy Quartet of Cavities From Giant Black Holes 16 Dec 21 Astronomers Spy Quartet of Cavities From Giant Black Holes NASA/CXC 
--2020--
Black Hole Fails to Do Its Job 03 Aug 20 Black Hole Fails to Do Its Job NASA/CXC 
Universe's Expansion May Not Be The Same In All Directions 08 Apr 20 Universe's Expansion May Not Be The Same In All Directions NASA/CXC 
Chandra Data Tests 19 Mar 20 Chandra Data Tests "Theory of Everything" NASA/CXC 
Record-Breaking Explosion by Black Hole Spotted 27 Feb 20 Record-Breaking Explosion by Black Hole Spotted NASA/CXC 
--2019--
Black Hole Nurtures Baby Stars a Million Light Years Away 26 Nov 19 Black Hole Nurtures Baby Stars a Million Light Years Away NASA/CXC 
A Weakened Black Hole Allows Its Galaxy to Awaken 18 Nov 19 A Weakened Black Hole Allows Its Galaxy to Awaken NASA/CXC 
Galaxy Clusters Caught in a First Kiss 25 Jun 19 Galaxy Clusters Caught in a First Kiss RIKEN 
Does the Gas in Galaxy Clusters Flow Like Honey? 18 Jun 19 Does the Gas in Galaxy Clusters Flow Like Honey? NASA/CXC 
Chandra Finds Stellar Duos Banished from Galaxies 28 May 19 Chandra Finds Stellar Duos Banished from Galaxies CXC 
--2018--
Scientists Surprised by Relentless Cosmic Cold Front 03 Apr 18 Scientists Surprised by Relentless Cosmic Cold Front NASA/CXC 
--2017--
A New Twist in the Dark Matter Tale 19 Dec 17 A New Twist in the Dark Matter Tale NASA/CXC 
Scientists Find Giant Wave Rolling through the Perseus Galaxy Cluster 02 May 17 Scientists Find Giant Wave Rolling through the Perseus Galaxy Cluster CXC 
Black-Hole-Powered Jets Forge Fuel for Star Formation 14 Feb 17 Black-Hole-Powered Jets Forge Fuel for Star Formation NRAO 
Astronomers Discover Powerful Cosmic Double Whammy 05 Jan 17 Astronomers Discover Powerful Cosmic Double Whammy CXC 
--2016--
Record-breaking Galaxy Cluster Discovered 30 Aug 16 Record-breaking Galaxy Cluster Discovered CXC 
28 Apr 16 "Russian Doll" Galaxy Clusters Reveal Information About Dark Energy CXC 
--2015--
Chandra Finds Remarkable Galactic Ribbon Unfurled 21 Dec 15 Chandra Finds Remarkable Galactic Ribbon Unfurled CXC 
NASA's Hubble, Chandra Find Clues that May Help Identify Dark Matter 26 Mar 15 NASA's Hubble, Chandra Find Clues that May Help Identify Dark Matter NASA 
NASA's Chandra Observatory Finds Cosmic Showers Halt Galaxy Growth 04 Mar 15 NASA's Chandra Observatory Finds Cosmic Showers Halt Galaxy Growth NASA 
--2014--
NASA's Chandra Weighs Most Massive Galaxy Cluster in Distant Universe 18 Dec 14 NASA's Chandra Weighs Most Massive Galaxy Cluster in Distant Universe CXC 
NASA's Chandra Observatory Identifies Impact of Cosmic Chaos on Star Birth 27 Oct 14 NASA's Chandra Observatory Identifies Impact of Cosmic Chaos on Star Birth NASA 
Mysterious X-ray Signal Intrigues Astronomers 24 Jun 14 Mysterious X-ray Signal Intrigues Astronomers CXC 
Hubble Finds that Monster 03 Apr 14 Hubble Finds that Monster "El Gordo" Galaxy Cluster is Bigger than Thought STScI 
Death By Black Hole In Small Galaxy? 08 Jan 14 Death By Black Hole In Small Galaxy? CXC 
--2013--
NASA's Great Observatories Begin Deepest Ever Probe of the Universe 24 Oct 13 NASA's Great Observatories Begin Deepest Ever Probe of the Universe NASA 
--2012--
From Super to Ultra: Just How Big Can Black Holes Get? 18 Dec 12 From Super to Ultra: Just How Big Can Black Holes Get? CXC 
Phoenix Cluster Sets Record Pace at Forming Stars 15 Aug 12 Phoenix Cluster Sets Record Pace at Forming Stars NASA 
Dark Matter Core Defies Explanation in NASA Hubble Image 02 Mar 12 Dark Matter Core Defies Explanation in NASA Hubble Image NASA 
NASA's Chandra Finds Largest Galaxy Cluster in Early Universe 10 Jan 12 NASA's Chandra Finds Largest Galaxy Cluster in Early Universe NASA 
--2010--
How Often do Giant Black Holes Become Hyperactive? 20 Dec 10 How Often do Giant Black Holes Become Hyperactive? CXC 
Galactic Super-volcano in Action 18 Aug 10 Galactic Super-volcano in Action CXC 
Einstein's Theory Fights off Challengers 14 Apr 10 Einstein's Theory Fights off Challengers CXC 
MSU Contributes to New Research on Star Formation 21 Jan 10 MSU Contributes to New Research on Star Formation MSU 
Massive Black Hole Implicated in Stellar Destruction 04 Jan 10 Massive Black Hole Implicated in Stellar Destruction CXC 
--2009--
Galaxy Cluster Smashes Distance Record 22 Oct 09 Galaxy Cluster Smashes Distance Record CXC 
Ghost Remains After Black Hole Eruption 28 May 09 Ghost Remains After Black Hole Eruption CXC 
Cosmic Heavyweights in Free-for-all 16 Apr 09 Cosmic Heavyweights in Free-for-all CXC 
--2008--
Dark Energy Found Stifling Growth in Universe 16 Dec 08 Dark Energy Found Stifling Growth in Universe NASA 
Searching for Primordial Antimatter 30 Oct 08 Searching for Primordial Antimatter CXC 
Ghostly Glow Reveals a Hidden Class of Long-Wavelength Radio Emitters 15 Oct 08 Ghostly Glow Reveals a Hidden Class of Long-Wavelength Radio Emitters NRL 
--2007--
Orphan Stars Found in Long Galaxy Tail 20 Sep 07 Orphan Stars Found in Long Galaxy Tail CXC 
Dark Matter Mystery Deepens in Cosmic 16 Aug 07 Dark Matter Mystery Deepens in Cosmic "Train Wreck" CXC 
Chandra Catches 24 Jul 07 Chandra Catches "Piranha" Black Holes CXC 
Galaxy Cluster Takes It to the Extreme 30 May 07 Galaxy Cluster Takes It to the Extreme CXC 
--2006--
Chandra Reviews Black Hole Musical: Epic But Off-Key 05 Oct 06 Chandra Reviews Black Hole Musical: Epic But Off-Key CXC 
NASA Finds Direct Proof of Dark Matter 21 Aug 06 NASA Finds Direct Proof of Dark Matter NASA 
Chandra Independently Determines Hubble Constant 08 Aug 06 Chandra Independently Determines Hubble Constant CXC 
Proto Supermassive Binary Black Hole Detected in X-rays 06 Apr 06 Proto Supermassive Binary Black Hole Detected in X-rays A&A 
--2005--
Chandra Proves Black Hole Influence is Far Reaching 01 Dec 05 Chandra Proves Black Hole Influence is Far Reaching CXC 
Galaxy Clusters, Near and Far, Have a Lot in Common 08 Apr 05 Galaxy Clusters, Near and Far, Have a Lot in Common RAS 
Most Powerful Eruption in the Universe Discovered 05 Jan 05 Most Powerful Eruption in the Universe Discovered NASA 
--2004--
Motions in Nearby Galaxy Cluster Reveal Presence of Hidden Superstructure 08 Sep 04 Motions in Nearby Galaxy Cluster Reveal Presence of Hidden Superstructure CXC 
Chandra Catches Early Phase of Cosmic Assembly 13 Aug 04 Chandra Catches Early Phase of Cosmic Assembly CXC 
Chandra Opens New Line of Investigation on Dark Energy 18 May 04 Chandra Opens New Line of Investigation on Dark Energy NASA 
Giant Galaxy's Violent Past Comes Into Focus 10 May 04 Giant Galaxy's Violent Past Comes Into Focus CXC 
Too Fast, Too Furious: A Galaxy's Fatal Plunge 06 Jan 04 Too Fast, Too Furious: A Galaxy's Fatal Plunge STScI 
Images From Hubbles's ACS Tell A Tale Of Two Record-Breaking Galaxy Clusters 02 Jan 04 Images From Hubbles's ACS Tell A Tale Of Two Record-Breaking Galaxy Clusters STScI 
--2003--
Chandra 09 Sep 03 Chandra "Hears" A Black Hole For The First Time NASA 
Hot News for Cold Dark Matter 11 Jun 03 Hot News for Cold Dark Matter CXC 
Chandra Provides New View of Biggest Construction Sites in Universe 21 May 03 Chandra Provides New View of Biggest Construction Sites in Universe NASA 
--2002--
Chandra Finds Surprising Black Hole Activity In Galaxy Cluster 13 Sep 02 Chandra Finds Surprising Black Hole Activity In Galaxy Cluster CXC 
Chandra Finds Ghosts Of Eruption In Galaxy Cluster 08 Jan 02 Chandra Finds Ghosts Of Eruption In Galaxy Cluster NASA 
--2001--
Astronomers Take the Measure of Dark Matter in the universe 06 Sep 01 Astronomers Take the Measure of Dark Matter in the universe IoA 
Chandra Probes Nature of Dark Matter 06 Sep 01 Chandra Probes Nature of Dark Matter NASA 
Chandra Finds Most Distant X-ray Galaxy Cluster 15 Feb 01 Chandra Finds Most Distant X-ray Galaxy Cluster CXC 
--2000--
Chandra Catches Cannibal Galaxy in the Act 07 Jun 00 Chandra Catches Cannibal Galaxy in the Act CXC 
Cosmic Pressure Fronts Mapped by Chandra 01 Mar 00 Cosmic Pressure Fronts Mapped by Chandra CXC 
--1999--
Chandra Ploughs Up a Snake In Hydra A 09 Dec 99 Chandra Ploughs Up a Snake In Hydra A CXC 
Cosmic Payback: Giant Galaxy Reacts to Being Dumped On 16 Nov 99 Cosmic Payback: Giant Galaxy Reacts to Being Dumped On CXC