Tuesday, 31 March, 2026
LIGO Detects Record Black Hole Merger, Challenges Stellar Models
By Isha
The LIGO-Virgo-KAGRA (LVK) Collaboration announced the detection of GW231123, the most massive black hole merger ever observed. The collision created a final black hole of approximately 225 solar masses. Crucially, the component black holes' high masses and rapid spin fall within the Pair-Instability Mass Gap, a region where standard stellar evolution theory suggests black holes should not form.
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