Previously we reported on the work of two researchers who recorded the ‘sounds of smog’ in and around California, but now NASA has successfully recorded the sound of the entire planet! Using twin spacecrafts known as Radiation Belt Storm Probes (RBSPs), NASA was able to record the planet’s ‘chorus’—hauntingly beautiful sounds created by the Earth’s magnetosphere, where charged particles from the sun interact with the earth’s magnetic field.
While scientists have known about the Earth’s chorus for a number of years, this is really the first time that these unique clicks and whistles have been recorded for the public. The RBSPs captured five separate occurrences of the phenomenon on September 5 using their in-built Electric and Magnetic Field Instrument Suite. The recordings were then made by a team from the University of Iowa and NASA’s Goddard Space Flight Center. However that is not the probe’s main objective – they are to release a pair of satellites that will investigate the various particles that make up the planet’s radiation belts.
“We’ve known about this phenomena for a long, long time,” Kletzing said. “I think people first were observing this back maybe even on the ground in the ’50s. But the understanding of exactly how it’s generated still remains one of the key scientific questions for this mission.”
Watch the video below to listen.
Image Credit: NASA/T. Benesch, J. Carns and NASA Goddard Photo and Video
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