NASA has unveiled an intriguing audio clip that captures the sound waves emitted by a supermassive black hole situated 250 million light years from Earth in the Perseus cluster of galaxies. To make these cosmic sounds audible, scientists transposed the acoustic waves up 57 and 58 octaves, marking the first time such sound waves have been converted for human listening.

While sound waves do exist in space, they aren't naturally perceptible to the human ear. Astronomers first identified these acoustic waves in the gas surrounding the black hole back in 2003. Interestingly, the lowest note recorded is a B-flat, an astonishing 57 octaves below middle C, with a frequency that would take 10 million years to reach that pitch. Typically, the human ear can detect sounds at frequencies of up to one-twentieth of a second.

To create the audio experience, the sound waves were played in an anti-clockwise direction around the black hole, making them audible from all angles at enhanced frequencies of 144 quadrillion and 288 quadrillion times higher than their original sound. The resulting audio is eerily captivating, similar to other recordings from space.

The gas and plasma within the intracluster medium are denser and hotter than those in the intergalactic medium. This unique environment influences star formation, suggesting that sound waves may play a crucial role in the development and evolution of galaxy clusters over time.

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