NASA posts what a black hole sounds like, netizens say it sounds like Om

The galaxy cluster Perseus is about 240 million light-years away from Earth. The sound waves identified there nearly two decades ago were "extracted and made audible" for the first time this year, according to NASA.

Science    24-Aug-2022
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Does anyone wonder what a black hole sounds like? Do you know that human ears aren't capable of hearing any sounds in space? However, thanks to NASA, people have got the opportunity to hear the sound of a black hole.
 
black hole
 
Breaking the misconception that there is no sound in space, NASA released an audio clip that represents actual sound waves emanating from the enormous black hole at the center of the Perseus galaxy cluster.
 
The galaxy cluster Perseus is about 240 million light-years away from Earth. The sound waves identified there nearly two decades ago were "extracted and made audible" for the first time this year, according to NASA.
 
The actual sound, however, is out of the human hearing range at 57 octaves below middle C. The Chandra X-ray Observatory captured data from the ripples in the Perseus cluster, visible in X-ray, which corresponded to inaudible sounds.
 
 
 
Then NASA scaled the sounds up from their true pitch to something you can hear. That's 144 quadrillions and 288 quadrillion times higher than their original frequency.
 
The radar-like scan around the image allows you to hear waves emitted in different directions. Blue and purple areas show X-ray data captured by Chandra.
 
NASA has also released another sonification of a famous black hole. The black hole in Messier 87, or M87, has been studied by scientists for decades.
 
M87 gained celebrity status in science in 2019 as it was the first black hole ever to be directly imaged in a colossal effort by the Event Horizon Telescope collaboration.
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