A common belief among astronomers is that galaxy groups and clusters differ mainly in the number of galaxies they contain—there are fewer galaxies in groups and more in clusters. Led by Maret Einasto, astronomers at Tartu ...
Astronomy
Feb 27, 2024
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Astronomers have discovered one of the most powerful eruptions from a black hole ever recorded. This mega-explosion billions of years ago may help explain the formation of a striking pattern of star clusters around two massive ...
Astronomy
Feb 21, 2024
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Using the Magellan Telescopes in Chile, Italian astronomers have observed a giant galaxy cluster known as Abell 2744, dubbed the Pandora's Cluster. Results of the observational campaign, presented in a paper published February ...
In a new study, scientists have mapped magnetic fields in galaxy clusters, revealing the impact of galactic mergers on magnetic-field structures and challenging previous assumptions about the efficiency of turbulent dynamo ...
The analysis of how galaxy clusters, the largest objects in the universe, evolve over cosmic time has yielded precise measurements of the total matter content and its clumpiness, report scientists of the German eROSITA consortium, ...
Astronomy
Feb 14, 2024
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When spectacular cosmic events such as galaxy collisions occur, it sets off a reaction to form new stars, and possibly new planets that otherwise would not have formed. The gravitational pull that forces the collisions between ...
Astronomy
Feb 9, 2024
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Although the exact nature of dark matter continues to elude astronomers, we have gained some understanding of its general physical properties. We know how it clusters around galaxies, how it makes up much of the matter in ...
Astronomy
Feb 2, 2024
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Researchers at the University of Kansas (KU) hope to better understand intricate mechanisms behind the evolution of galaxies, which travel through a "cosmic web" of different environments during their lifespans.
Astronomy
Jan 30, 2024
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49
The lenticular galaxy NGC 4753, captured by the Gemini South telescope, one half of the International Gemini Observatory operated by NSF's NOIRLab, is a truly remarkable object. Its prominent and complex network of dust lanes ...
Astronomy
Jan 25, 2024
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Although dark matter makes up about 27% of the universe, astronomers have been unable to observe it directly.
Astronomy
Jan 17, 2024
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