When the first-ever image of a supermassive black hole — the one at the center of the Messier 87 galaxy some 55 million light-years away from Earth — was revealed to the world in 2019 ...
It's about 6.5 billion times as massive as our Sun — that's enormous even compared to other supermassive black holes and lives in the center of the Messier 87 galaxy. And as far as experts can ...