Ever wondered why nothing escapes a black hole's pull?
Stellar black hole
Ever wondered why nothing escapes a black hole's pull?
Imagine throwing a ball into a whirlpool; it spirals down regardless of how fast you throw it.
A black hole's gravity is so strong that even light can't escape once it crosses a certain boundary. This boundary is called the Schwarzschild radius.
Example
A solar-mass black hole has a Schwarzschild radius of about 3 kilometers.
Remember this
The Schwarzschild radius defines the point of no return for matter and light around a black hole.
Text adapted from Wikipedia, licensed under CC BY-SA 4.0.
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