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Study Reveals Dark Matter Clumps Could Dim Starlight

11/10/2025

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Summary

Story summary

A study published in Physical Review Letters suggests dark matter might form clumps that dim starlight.
Coauthor Melissa Diamond notes these clumps would interact weakly with light yet could block enough to be detectable.
The approach could use data from surveys like the Optical Gravitational Lensing Experiment to identify the clumps.
Dark matter is believed to constitute about 85% of the universe's mass, and this could advance understanding.

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Story summary

A study published in Physical Review Letters suggests dark matter might form clumps that dim starlight.
Coauthor Melissa Diamond notes these clumps would interact weakly with light yet could block enough to be detectable.
The approach could use data from surveys like the Optical Gravitational Lensing Experiment to identify the clumps.
Dark matter is believed to constitute about 85% of the universe's mass, and this could advance understanding.