What is blackhole

A black hole is a region in space with an extremely strong gravitational pull, so strong that nothing, not even light, can escape from it. It is created when a massive star collapses in on itself, causing its core to become infinitely dense and creating a singularity. Black holes can be either stationary or rotating and come in different sizes, ranging from stellar-mass black holes to supermassive black holes that can be millions or billions of times more massive than the sun. They are invisible to the naked eye but can be detected by observing their effects on nearby matter