Dark matter has a firm grip on these galaxies
Oct 22, 2024
The elliptical galaxy NGC 1270 lies about 240 million light-years away. But it's not alone. It's part of the Perseus Cluster (Abell 426), the brightest X-ray object in the sky and one of the most massive objects in the universe.
https://phys.org/news/2024-10-dark-firm-galaxies.html
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