Part 2/8:
The black hole in question, identified as GW190521, boasts a staggering mass of 142 times that of our Sun. This marks the first time an intermediate-mass black hole has been observed, challenging long-held assumptions about the existence of such cosmic entities. Typically, black holes fall into one of two categories: stellar black holes, which are formed from the collapse of dying stars (typically weighing between 3 to 10 solar masses), and supermassive black holes found at the centers of galaxies, which can range from millions to billions of solar masses.