A star is kind of a huge nuclear explosion. Things are smashing into each other all the time, bouncing off, and all this movement creates vibrations, so there's actually sound sound inside any star. Pulsars have produced radio waves, which have been converted into audible sound waves, thus giving us these sounds which are on the internet. The real question is what does it sound like inside a pulsar? Is it the same the as the converted radio waves? Or does it sound differently?