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Astrophysicists Are Close to Proving the Existence of Primordial Black Holes

On November 12, 2025, a ripple passed through the fabric of spacetime and triggered alarms at three gravitational-wave observatories across two continents. The signal, catalogued as S251112cm, was unusual in a way that stopped astrophysicists cold: at least one of the objects that created it appeared to weigh less than the sun. No known stellar process produces a black hole that small. Stars that collapse into black holes leave remnants several …
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Aristegui Noticias broke the news in Mexico City, Mexico on Sunday, March 29, 2026.
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