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Triple Black Hole Discovery Shifts Galactic Theories

12/31/2025

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Summary

Story summary

The galaxy system J1218/1219+1035, 1.2 billion light-years away, contains three actively accreting supermassive black holes that emit radio light.
Dr. Emma Schwartzman, of the U.S. Naval Research Laboratory, notes this observation moves triple active galactic nuclei from theory to reality.
The merging galaxies have separations of about 22,000 and 97,000 light-years.
The findings were published in The Astrophysical Journal Letters, with follow-up studies planned.

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Story summary

The galaxy system J1218/1219+1035, 1.2 billion light-years away, contains three actively accreting supermassive black holes that emit radio light.
Dr. Emma Schwartzman, of the U.S. Naval Research Laboratory, notes this observation moves triple active galactic nuclei from theory to reality.
The merging galaxies have separations of about 22,000 and 97,000 light-years.
The findings were published in The Astrophysical Journal Letters, with follow-up studies planned.