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Scientists Discover Mini-Halo in Distant Galaxy Cluster

7/19/2025

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Summary

Story summary

Astronomers, led by Keegan Trehaeven, have unveiled a remarkable mini-halo structure in the Abell 3558 galaxy cluster, a staggering 700 million light-years away. Through cutting-edge radio telescopes, they detected intricate gas movements, revealing that this mini-halo is sculpted by cold fronts and energized by turbulence and feedback from an active galactic nucleus.

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Story summary

Astronomers, led by Keegan Trehaeven, have unveiled a remarkable mini-halo structure in the Abell 3558 galaxy cluster, a staggering 700 million light-years away. Through cutting-edge radio telescopes, they detected intricate gas movements, revealing that this mini-halo is sculpted by cold fronts and energized by turbulence and feedback from an active galactic nucleus.