Listen to the ‘sound’ of Jupiter’s moon Ganymede thanks to the Juno probe


You’d assume moons can be quiet in contrast to their host planets, however that is not solely true — if you know the way to pay attention. The principal investigator for NASA’s Juno mission, Scott Bolton, has produced an audio recording of magnetic discipline exercise round Jupiter’s moon Ganymede as the Juno spacecraft flew previous on June seventh, 2021. The 50-second clip reveals a pointy change in exercise as the probe entered a unique half of Ganymede’s magnetosphere, presumably because it left the evening aspect to enter the daylight.

The audio got here from shifting electrical and magnetic frequencies into the audible vary. Jupiter’s magnetosphere dominates that of its moons and is current in the recording, however Ganymede is the solely moon in the Solar System to have a magnetic discipline (probably due to its liquid iron core). This is not a feat you may replicate elsewhere in the close to future.

The soundtrack was half of a bigger Juno briefing the place the mission group revealed the most detailed map but of Jupiter’s magnetic discipline. The information confirmed how lengthy it could take the Great Red Spot and the equatorial Great Blue Spot to transfer round the planet (roughly 4.5 years and 350 years respectively). The findings additionally confirmed that east-west jetstreams are ripping the Great Blue Spot aside, and that polar cyclones behave very like ocean vortices on Earth.

You would not hear these sounds when you may go to Ganymede your self. However, they seem to be a reminder that even seemingly useless worlds are regularly brimming with exercise you may detect utilizing the proper devices. It’s only a question of how simple it’s to discover that exercise.

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