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Binary Black Hole Merger Shocks Scientists with Gamma-Ray Burst

3/18/2026

Summary

Story summary

Astronomers linked the binary black hole merger detected on November 25, 2024, with a short gamma-ray burst (GRB), contradicting the view that mergers are invisible.
The gravitational wave event S241125n occurred 4.2 billion light-years away.
It was followed by a flash of X-ray and gamma-ray light, suggesting an occurrence.
Researchers propose the merger occurred within a dense accretion disk around a supermassive black hole, driving intense accretion and emission.

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Story summary

Astronomers linked the binary black hole merger detected on November 25, 2024, with a short gamma-ray burst (GRB), contradicting the view that mergers are invisible.
The gravitational wave event S241125n occurred 4.2 billion light-years away.
It was followed by a flash of X-ray and gamma-ray light, suggesting an occurrence.
Researchers propose the merger occurred within a dense accretion disk around a supermassive black hole, driving intense accretion and emission.