General relativity plays a key role in our understanding of the behavior of black holes, which are objects with such strong gravitational fields that not even light can escape from them. General relativity predicts the existence of black holes, and it provides a framework for studying their properties and behavior. For example, General relativity predicts that black holes have an event horizon, a boundary beyond which nothing can escape, and that they can merge and form more massive black holes. The study of black holes has been a major focus of research in both astrophysics and General relativity.\n
How does General relativity impact our understanding of the behavior of black holes?