As part of NASA’s HARP project, Earth’s magnetic field data has been converted into an audible sound. NASA has published the sound sequence on YouTube. You can hear strange sounds like crunching and hissing. It almost sounds like filling a vessel with water and emptying it again.
These sounds occur when plasma waves from the sun interact with Earth’s magnetic field. The field lines vibrate about like the strings of a harp when plucked. When plasma waves hit the magnetosphere, the area around the Earth dominated by its magnetic field generates fluctuations in the plasma shield. This releases “ultra-low frequency” radio waves.
Frequencies recorded by satellites
The ultra-low frequencies are recorded by 5 satellites of the THEMIS mission, launched in 2007, traveling through the magnetosphere. These radio waves are subsequently converted into audible sounds. This should make it easier for researchers to identify irregularities in the plasma shield. This invisible barrier protects us from harmful radiation and solar storms.
If researchers detect irregularities in the plasma shield, they could gain new insights into the magnetosphere and the sun.
Converting space data into sound is not new. NASA has also translated other cosmic phenomena into sounds, such as a supernova or a black hole.
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