Story perspectives
Einstein Cross Reveals Hidden Dark Matter Halo Discovery
9/25/2025
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Story summary
- A rare Einstein Cross with a fifth image around HerS-3 indicates a hidden dark matter halo.
- Pierre Cox first spotted it with the Northern Extended Millimeter Array in France.
- Charles Keeton and Lana Eid confirmed the fifth image via computer modeling, amid international collaboration.
- Dark matter cannot be seen directly; its gravity bends light.
