A black hole is a cosmic body or space region where gravity is so intense and strong that nothing, not even light or other electromagnetic waves, can escape.
There are different types of black holes. These are:
- Stellar-mass
- Intermediate-mass
- Supermassive
Stellar-mass:
Stellar-mass black holes are found throughout our Milky Way galaxy and have masses less than about 100 times that of our Sun.
Intermediate-mass:
Intermediate-mass black holes have masses between about 100 and 100,000 times that of our Sun. Until recently, the existence of intermediate-mass black holes had only been theorized.
Supermassive:
Supermassive black holes contain between a million and a billion times as much mass as a stellar-mass black hole. Scientists are uncertain how supermassive black holes form, but one theory is that they result from combining stellar-mass black holes.