The event horizon is a critical concept in astrophysics, particularly in the study of black holes. It refers to the boundary around a black hole beyond which nothing, not even light, can escape its gravitational pull. Once an object or light crosses the event horizon, it is said to be inside the black hole and can never return to the outside universe.
Determining the Event Horizon
The event horizon is determined by the mass of the black hole. For a non-rotating, non-charged black hole, the event horizon is a spherical surface. In contrast, for a rotating or charged black hole, the event horizon may become more complex in shape.
Intriguing Phenomena Near the Event Horizon
The presence of the event horizon creates several intriguing phenomena:
