Gamma rays from a dwarf galaxy solve an astronomical puzzle


(Image credit: NASA’s Goddard Space Flight Center)

This article was originally published at The Conversation. (opens in new tab) The publication contributed the article to Space.com’s Expert Voices: Op-Ed & Insights.

A glowing blob known as “the cocoon,” which appears to be inside one of the enormous gamma-ray emanations from the center of our galaxy dubbed the “Fermi bubbles,” has puzzled astronomers since it was discovered in 2012.



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