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In Nov 2023, Scientists Detected The Biggest Black Hole (BH) Merger Ever: Two BHs Of 103 And 137 Solar Masses (SM) Collided 10bn Ly Away, Spinning ~40K x Earth’s. The Resulting 265-SM BH, Detected Via Gravitational Waves, Breaks The Previous 140 SM Record And Challenges Current BH Formation Models, Suggesting Layered Mergers From Prior Collisions.