Scale of Black Hole! . . #braincox #Science #space #blackhole

The scale of black holes is absolutely mind-blowing. One of the smallest known black holes is J1650. Its diameter is roughly the length of Manhattan, yet it packs in the mass of 3.8 suns. The next step up is this black hole Messier 15. It's around the size of Mars while containing the mass of 4,000 suns. We're now approaching the lower end of what astronomers call a supermassive black hole. This one is nearly the same size as our sun, but carries 100,000 times its mass. And here's the wild part. The black hole at the centre of our galaxy, Sagittarius A, is about this large compared to our sun and contains 4 million solar masses. We captured its first image in 2022. Now we move into the truly unbelievable. The black hole in Galaxy M87 has the mass of 5.4 billion suns. It became the first black hole ever photographed in 2019. And finally, one of the biggest black holes ever discovered tips the scales at an astonishing 66 billion times the mass of our sun.