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FreeSchool Presents: a closer look at black hole sounds. You probably know that black holes are massive dark bodies in space with such powerful gravity that nothing, not even light, can escape from them. But did you know that scientists have discovered that they make sounds? The actual sounds that they make are outside the range of human hearing, so astronomers have reconstructed sounds based on information in multiple wavelengths to help us understand the types of sound that a black hole would make.

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