Where is the closest black hole and what are they?

The closest known black hole to Earth is the one located in the binary star system called V616 Monocerotis, also known as A0620-00. This black hole is approximately 3,000 light-years away from Earth. Please note that new discoveries might have occurred since my last update, so I recommend checking the latest astronomical data for the most current information.\n\nBlack holes are regions in space where the gravitational pull is so strong that nothing, not even light, can escape from them once it crosses a boundary called the event horizon. They are formed from the remnants of massive stars that have undergone a supernova explosion, leaving behind a highly dense core. Black holes can also form through the collision of other black holes or the merging of neutron stars.\n\nBlack holes come in different sizes, ranging from stellar-mass black holes (a few times more massive than our Sun) to supermassive black holes found at the centers of most galaxies, including our own Milky Way galaxy. Supermassive black holes can have masses ranging from hundreds of thousands to billions of times that of the Sun.\n\nBlack holes have been a subject of fascination and intense study for astronomers and astrophysicists because they challenge our understanding of the laws of physics, particularly when it comes to the extreme conditions they create.
Question by: Marwow