The sound of the Earth’s magnetic field was heard for the first time – It reminds of a “thriller”

Kind of scary, reminiscent of… a thriller, it is the sound of Earth’s protective magnetic field. For the first time, as announced by the European Space Agency (ESA), scientists at the Technical University of Denmark took magnetic signals recorded by the European Swarm satellites and converted them into sounds.

In fact the magnetic field itself around our planet cannot be seen or heard directly. It is a complex and dynamic ‘bubble’ that keeps us safe from cosmic radiation and the charged particles of the powerful solar ‘wind’. When these particles collide with the atoms and molecules – mainly oxygen and nitrogen – in the Earth’s upper atmosphere, then some of the collisions turn into the green-blue spectacular aurora borealis.

The Earth’s magnetic field is produced primarily by an “ocean” of very hot and swirling molten iron in our planet’s outer core, which generates electric currents, which in turn generate the electromagnetic field.

The “trio” of ESA’s Swarm mission satellites, launched in 2013, study the Earth’s magnetic field by precisely recording its signals. Danish researchers and musicians used this magnetic data, both from the Earth’s core and from a geomagnetic storm created after a solar flare, to turn it into sounds, which sound a bit like…a backlash in a nightmare.

As mentioned, their intention is not to scare people, but to remind that the magnetic field it exists and, although it sounds a bit alarming, in fact life on Earth depends on it. A series of loudspeakers in Copenhagen’s Solbjerk Square will periodically broadcast the sound of the magnetic field throughout the week of October 24-30.

Listen to the audio HERE

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