Astronomers have proposed a new explanation for the mysterious Cygnus Bubble, a vast cloud of ultra-high-energy gamma rays stretching thousands of light-years across the sky. While the bubble has generally been linked to the Cygnus X star-forming region, the new study argues that a microquasar m...

Source: [Phys.org](https://phys.org/news/2026-08-mysterious-cygnus-microquasar-astronomers.html)

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