Galaxy clusters are the most massive objects in the universe held together by gravity, containing up to several thousand individual galaxies and huge reservoirs of superheated, X-ray-emitting gas. The mass of this hot gas is typically about five times higher than the total mass of all the galaxies in galaxy clusters. In addition to these […]
December 09, 2025
from NASA https://ift.tt/XGZglsE
Wednesday, 10 December 2025
Painting Galaxy Clusters by Numbers (and Physics)
NASA
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