Black holes are exotic, exciting, and mysterious. In fact, they just might be the most mysterious stellar object in the universe – after all, as far as we know, their gravitational pull is so strong that nothing, not light nor information, can escape it.
In a nutshell, black holes form after the death of a supergiant star. In life, Stars are balanced by two opposing forces – the inward push of gravity which is attempting to collapse the star, and the outward pressure of the star’s power. When a massive supergiant reaches the end of its life, without the outward pressure of radiation, the star implodes due to the gravity of its own mass, and the resulting supernova can leave behind a dense point of gravity – imagine the mass of an entire supergiant star compressed into a small, dense object.