Yes, it is possible to find black holes. Scientists have been studying and detecting black holes for decades using different methods and technologies.
Scientists use a variety of methods to find black holes, including studying the movements of stars and gas around a suspected black hole, detecting X-rays emitted from the hot gas surrounding a black hole, and observing the gravitational effects of a black hole on its surroundings.
No, there are no known black holes near Earth. The nearest known black hole, named V616 Monocerotis, is about 3,000 light years away from Earth.
No, black holes cannot be seen with the naked eye. They do not emit any light, so they appear completely black. However, scientists can indirectly observe the effects of a black hole on its surroundings.
Black holes are only dangerous if you get too close to them. The extreme gravitational pull of a black hole can tear apart anything that gets too close, including stars and planets. However, there are no known black holes near enough to Earth to pose any danger to us.