Eerie audio emanating from the Perseus cluster reminds social media users of sci-fi films and hungry stomachs
If you were content to go through life without knowing what a supermassive black hole sounds like (perhaps because of its scary name or a desire not to think about endless darkness), your luck has run out.
On Sunday Nasa released an audio clip that represents actual sound waves emanating from the enormous black hole at the centre of the Perseus galaxy cluster, which is more than 200m light years away.
