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.

Via Inhabitat