Sound of Earth s magnetic flip 41 000 years ago

Approximately 41 000 years ago, Earths magnetic field briefly reversed during what is known as the Laschamp event. During this time, Earths magnetic field weakened significantlydropping to a minimum of 5 of its current strengthwhich allowed more cosmic rays to reach Earths atmosphere. Scientists at the Technical University of Denmark and the German Research Centre for Geosciences used data from ESAs Swarm mission, along with other sources, to create a sounded visualisation of the Laschamp event. They mapped the movement of Earths magnetic field lines during the event and created a stereo sound version which is what you can hear in the video. The soundscape was made using recordings of natural noises like wood creaking and rocks falling, blending them into familiar and strange, almost alienlike, sounds. The process of transforming the sounds with data is similar to composing music from a score. Data from ESAs Swarm constellation are being used to better understand how Earths magneti