Sonification of ripples: Hear the weird sounds of a black hole singing

The Chandra astronomers recently 'sonified' these ripples by speeding up the signals to 57 or 58 octaves above their original pitch, boosting their frequency quadrillions of times to make them audible

In space you can’t hear a black hole scream, but apparently you can hear it sing.

In 2003 astrophysicists wor­king with NASA’s orbiting Cha­n­­dra X-ray Observatory detected a pattern of ripples in the X-ray glow of a giant cluster of galaxies in the constellation Per­seus. They were pressure waves — that is to say, sound waves — 30,000 light-years across and radiating outward through the thin, ultra hot gas that suffuses galaxy clusters. They were cau­sed by periodic explosions from a supermassive black hole at the centre of the cluster that is 250 million light-years away and contains thousands of