Spacecraft record weird ‘music’ of our planet during solar storm

Katie Ramirez
November 21, 2019

This marks the first time that the sound of a solar storm hitting the planet was recorded.

As part of their orbits, the Cluster spacecrafts repeatedly fly through the foreshock, which is the first region of space the particles of a solar storm encounter as it hits our planet's magnetic field.

The full findings of the study will be published in the journal Geophysical Research Letters. Thus, there was a freaky "song" of Earth's magnetic field.

The team used computer simulations to reveal the the intricate wave patterns that emerge during solar storms.

"It's like the storm is changing the tuning of the foreshock", Turc said.

'We at all times anticipated a change in frequency - but not the extent of complexity within the wave, ' Dr Turc said. Magnetic fields are ubiquitous, and so they form of complex interplay seen in Earth's foreshock could happen in a wide range of cosmic environments, together with exoplanets orbiting near their parent star, as they might be immersed in intense magnetic fields.

"The video contains a 'sonification" of the magnetic waves in the undisturbed foreshock, obtained by transforming the frequencies of these magnetic waves into audible signals.

When a solar storm passes by Earth, however, the impact of it hitting the magnetic field's foreshock causes that "music" to rise in pitch and become far more complex.

The sun and its atmosphere are made of plasma - a mix of positively and negatively charged particles which have separated at extremely high temperatures, that both carries and travels along magnetic field lines.

Assuredly, the fixed drift of charged particles that makes up the solar wind causes the foreshock to emit straightforward magnetic waves that - when converted into audio waves - sound something esteem a single, low musical existing.

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Solar storms can result in some spectacular and weird effects here at Earth.

Astronomers from the European Space Agency (ESA) have compiled archive data from a satellite mission.

The "sounds" featured in the clip were generated in 2003 and 2005, as the Cluster II probes captured the moment solar particles hit Earth's magnetic field during the bout of space weather. It is a fast process, taking around 10 minutes from the wave being generated at the foreshock to its energy reaching the ground.

Turc and her team are now working to try and understand how these complex wave superpositions are generated.

Solar storms are a part of space weather.

Behind the bow shock, the magnetic fields of Earth start to resonate at the frequency of the waves and this contributes to the transmission of the magnetic disturbance all the way to the ground.

As part of their mission, the Cluster vessels go through the foreshocks generated by the solar winds.

Recently, the ESA released the recording it was able to obtain through the Cluster mission.

This new scientific examine based mostly on the long-lived Cluster mission gives one other element in that information; nevertheless, it additionally has a bigger position to play in our understanding of the universe.

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