Black holes Sometimes people ask if black holes work like a vacuum cleaner, which can empty the whole universe, starting with the surrounding stars. We know that it is not true: the gravitation works roughly in the same way for solar-mass black hole and the Sun (talking about the space above solar radius from the black hole). The black hole radius is defined as Schwarzschild radius, linearly proportional to the mass of the black hole. Beyond the sphere of this radius nothing can escape from the black hole, even light. We have the whole range of black holes (BHs), depending on its mass. It is highly unlikely for solar-mass black…
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