Scientists have gotten to the bottom of the mystery of an "impossible" merger between black holes that was detected via ripples in space-time called gravitational waves back in 2023.

The collision occurred around 7 billion light-years away and involved a smashup of two black holes that seemed to be forbidden, because of their enormous masses and the incredible rate at which they were spinning.

These black holes — with masses of 100 and 140 times that of the sun, and spinning at near the speed of light — shouldn't exist according to current theories of how "stellar mass black holes" form when massive stars collapse and explode as supernovae.

Researchers from the Flatiron Institute's Center for Computational Astrophysics (CCA) in New York tackled this puzzle by performing simulations that

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