About this blog

This is my secondary, extremely-seldomly updated blog about music.

Wednesday, November 14, 2012

The Sound of Space

This is not music. This is a recording of electromagnetic radiation from Jupiter, translated into sound waves, made by Voyager as it passed by.

The description:
From an original CD: JUPITER NASA-VOYAGER SPACE SOUNDS (1990) BRAIN/MIND Research
Fascinating recording of Jupiter sounds (electromagnetic "voices") by NASA-Voyager. The complex interactions of charged electromagnetic particles from the solar wind , planetary magnetosphere etc. create vibration "soundscapes". It sounds very interesting, even scary.
Jupiter is mostly composed of hydrogen and helium. The entire planet is made of gas, with no solid surface under the atmosphere. The pressures and temperatures deep in Jupiter are so high that gases form a gradual transition into liquids which are gradually compressed into a metallic "plasma" in which the molecules have been stripped of their outer electrons. The winds of Jupiter are a thousand metres per second relative to the rotating interior. Jupiter's magnetic field is four thousand times stronger than Earth's, and is tipped by 11° degrees of axis spin. This causes the magnetic field to wobble, which has a profound effect on trapped electronically charged particles. This plasma of charged particles is accelerated beyond the magnetosphere of Jupiter to speeds of tens of thousands of kilometres per second. It is these magnetic particle vibrations which generate some of the sound you hear on this recording.


I find it absolutely astounding that we can listen to signals from places in the universe we consider to be desolate, places with no relation to us that we knew nearly nothing about before the space age, and hear sounds that aesthetically resonate with us so strongly. Can this be accidental?

Also, iTunes apparently has a ten-track compilation of these kinds of sounds recorded from all over the Solar System--over five hours for $10! Listen to some music that's literally out of this world. (Sorry, bad pun)

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