Astrophysicists have explained that the "GW231123" signal, detected in 2023 and recorded as the largest black hole merger to date, may be a gravitational illusion.
The gravitational wave signal GW231123, detected in 2023, is now the subject of a new debate regarding the accuracy of the measurements. Researchers believe that in what is considered the largest black hole merger observed to date, the black holes may have appeared larger than they actually are due to gravitational lensing.