section_path: Properties and structure/Plunging region
section_name: Plunging region
paragraph_text: Plunging region
  
  The final observable region of spacetime around a black hole is called the plunging region. In this area it is no longer possible for matter to follow circular orbits or to stop a final descent into the black hole. Instead it will rapidly plunge toward the black hole close to the speed of light.