Astronomers first recorded the mysterious 'song' of the Earth's magnetic field during a solar storm attack.
The British Daily Mail reported that the 'tone' was expressed in the form of sound waves of aurorae of light that could be observed near the poles while charged particles interacted with the Earth's atmosphere.
The Earth's magnetic field (white below) comes in contact with charged particles from the Sun.(Photo: NASA).
A team of experts at the European Space Agency (ESA) picked up the 'vocal' while analyzing the magnetic waves generated by the 'solar wind' that hit our planet. They turned the resulting audio frequency into a strange sound, which they described as a 'sound effect in a science fiction film rather than a natural phenomenon'.
The 'song' was determined after the team sent four spacecraft to the 'seismic zone' of the Earth's magnetic field, which is opposite the Sun, and was the first to be affected by solar storms.
Typically, the continuous flow of charged particles that create the solar wind causes the 'seismic region' to emit simple magnetic waves - when transformed into sound waves it will look like a single low note. When the Sun storm hit the Earth, its impact on the 'seismic zone' in the magnetic field caused the 'music' to rise higher and more complex.
'As if the storm changed the tone of the earthquake,' astrophysicist Lucile Turc, author of the study, wrote in the journal Geophysical Research Letters.
The upcoming ESA 'Solar Orbiter' mission, scheduled for February 2020, will help us better understand the conditions for creating such mysterious cosmic sound.