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Cold Hydrogen Clouds Discovered in Milky Way's Fermi Bubbles

7/20/2025

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Summary

Story summary

Cold hydrogen clouds have been found within the Fermi bubbles at the heart of the Milky Way, defying earlier beliefs about their existence in intense heat. This discovery hints at a recent explosion from the central black hole, revealing that the Fermi bubbles are just a few million years old and transforming our perspective on galactic evolution.

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Story summary

Cold hydrogen clouds have been found within the Fermi bubbles at the heart of the Milky Way, defying earlier beliefs about their existence in intense heat. This discovery hints at a recent explosion from the central black hole, revealing that the Fermi bubbles are just a few million years old and transforming our perspective on galactic evolution.