There is no sound in the vacuum of space because sound needs a medium to travel through, but celestial objects can still make a “noise” with electromagnetic waves. On its journey to the edge of the solar system, the Voyager 1 Spacecraft recorded vibrations created by interactions between the charged particles of the solar wind and the magnetospheres of various planets and moons. These haunting soundscapes were sent home to Earth, and since the vibrations were between 20 hz to 20 khz—within the range of human hearing—we could convert them into sound. The results are both stunningly familiar and utterly alien, and NASA even released an album of them. Press play, and realise that you’re not listening to human-made sounds, but instead to the solar weather of planets and moons billions of kilometres from home.