Faint Light Reveals the Shape of Invisible Dark Matter ⚡ экспресс
Original: "Intracluster light is a close tracer of the dark matter halo shape"
Faint intergalactic light acts as a natural cast, unveiling the shape of invisible dark matter.
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Faint light spilling between galaxies, like an invisible outline, traces the shape of dark matter—the mysterious scaffolding of the Universe. This simple observation replaces complex calculations and helps astronomers 'see' the invisible.
🎯 Though billions of stars produce this light, altogether they shine at less than 1% the brightness of the cluster's central galaxy.