How black holes formed???!!!!!!!!

Black holes are areas in space where the force of gravity is so strong that not even light can escape its pull, like a game of tug-of-war you can't win.

Stellar black holes are smaller black holes that form when huge stars with about ten to twenty-four times as much matter as our Sun die. The dying star caves in on itself like a building when it's demolished, creating a giant supernova, which is a star that explodes. That enormous explosion sends the outer bits of the star into space. All that is left is the collapsing center. If the center has enough matter, the strong gravity in the center squeezes it so much as it collapses that it turns into a black hole. 

Supermassive black holes are enormous and have millions or maybe billions of times as much matter as the Sun. Scientists think that there is a supermassive black hole in the middle of all big galaxies. The Milky Way where we live has one called Sagittarius A