First Audible Plasma Waves Between Saturn and Enceladus Revealed
Using data from NASA’s Cassini mission, scientists detected electrostatic plasma waves traveling along magnetic field lines between Saturn and its moon Enceladus and converted those signals into sound. The observation—made with Cassini’s Radio and Plasma Wave Science instrument near the end of its mission—produces an eerie auroral hiss and represents the first close-proximity recording of this plasma activity, deepening our understanding of the Saturn–Enceladus system.