What is a Schwarzschild black hole?

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A Schwarzschild black hole is a nonrotating black hole that is characterized by its event horizon, which is also called the Schwarzschild radius. It is named after the German physicist Karl Schwarzschild, who first solved Einstein's field equations to describe the gravity of a nonrotating black hole. The Schwarzschild radius is the radius at which the escape velocity equals the speed of light, which means that anything that passes inside this radius is trapped by the black hole's gravity and cannot escape, including light.

What Is a Schwarzschild Black Hole