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New Method to Detect Hidden Black Hole Binaries Revealed

2/14/2026

Summary

Story summary

Researchers from Oxford University and the Max Planck Institute propose detecting hidden supermassive black hole binaries by observing repeating light flashes from stars magnified by gravitational lensing.
The repeating light patterns arise as the black holes orbit, potentially revealing their masses and evolution.
The study was published in Physical Review Letters and notes that existing and upcoming electromagnetic surveys, including the Vera C. Rubin Observatory, could help spot these binaries.

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Story summary

Researchers from Oxford University and the Max Planck Institute propose detecting hidden supermassive black hole binaries by observing repeating light flashes from stars magnified by gravitational lensing.
The repeating light patterns arise as the black holes orbit, potentially revealing their masses and evolution.
The study was published in Physical Review Letters and notes that existing and upcoming electromagnetic surveys, including the Vera C. Rubin Observatory, could help spot these binaries.