NASA created a haunting audio clip of sound waves rippling out of a supermassive black hole, located 250 million light-years away. The black hole is at the center of the Perseus cluster of galaxies, ...

NASA has released an eerie audio clip of sound waves emanating from a supermassive black hole in the Perseus galaxy cluster, ...

NASA has turned pressure waves emanating from a black hole at the centre of the Perseus galaxy cluster into notes audible to humans. The sound waves were extracted along the radius of the galaxy ...

trumpet the sound from the trumpet comes from a vibrating column of air created by buzzing lips of the trumpeter A sound wave is a longitudinal wave. When an object vibrates it produces a ...