NASA’s Juno probe, launched in 2011 to study Jupiter’s magnetic field, recorded these 50 seconds of audio during the close flyby of one of Jupiter’s four moons, Ganymede, on June 7, 2021. The sound was obtained by transferring the electrical and magnetic frequencies in the range of frequencies audible to the human ear.
“This sound is quite incredible, it makes you feel like you’re aboard Juno as it passes Ganymede for the first time in more than two decades,” said Scott Bolton, one of the Juno mission leaders.
“If you listen closely, you can hear the abrupt shift towards higher frequencies around the middle of the recording, documenting the transition to a different region in Ganymede’s magnetosphere.” The Washington Post, reporting the news of this audio file released by NASA last December 17, wrote that the sound resembles that emitted by R2-D2, the popular droid of the Star Wars science fiction saga.
edited by Pier Luigi Pisa