Exploring Black Holes: From Stellar to Supermassive

The video explains the life cycle of massive stars, which end in a supernova explosion. It introduces supermassive black holes, which can have masses over a million times that of the Sun, and are believed to exist at the center of every galaxy. The video highlights Sagittarius A, the supermassive black hole at the center of the Milky Way, with a mass of about 4 million Suns.

What new insight or understanding did you gain from this video?