As the film ‘Gravity’ famously displayed, there is no sound in space (well, ‘Alien‘ did mention it first). Though a virtual vacuum, the objects filling that space (no pun intended) continually emit electromagnetic vibrations detectable through “special” NASA designed instruments.
Coming from a combination of electronic vibrations of the planets, moons and rings, electromagnetic fields of the planets and moons, planetary magnetosphere, trapped radio waves bouncing between the planet and the inner surface of it’s atmosphere, charged particle interactions of the planet, it’s moons and the solar wind, and from charged particle emissions from the rings of certain planets, in the same way sound waves resonate inside an organ pipe.
Take a sun-like star, for instance: vibrations are caused by surface turbulence, which then penetrate deep into the star’s interior causing oscillations. For scientists, such activity establishes subtle, rhythmic changes in that star’s brightness.
Though the internal structure of a star is a fascinating subject in and of itself, the ephemeral, ambient soundscapes captured are truly something other-worldy. Take a listen below…
Source: The Spirit Science