Part 4/8:
The findings suggest that supermassive black holes might arise from the repeated merger of these intermediate-mass black holes. The merging of GW190521, which resulted from the collision of two smaller black holes weighing 85 and 65 solar masses, challenges the current models of black hole formation. Conventional wisdom posits that when a star collapses, it cannot form black holes in the range of 60 to 120 solar masses due to the destructive force of the accompanying supernova explosion. Yet, the successful detection of these merged bodies underlines the complexities and gaps in our current understanding of black hole dynamics.