'Sounds' of Earth's Radiation Belt Heard by NASA Probes

NASA’s Van Allen Probes' EMFISIS instrument has captured chorus waves passing through Earth’s upper atmosphere. -- Learn more about it: https://www.space.com/40874-whistling-chorus-waves-supercharge-radiation-belts.html

Credit: Space.com / animation and audio courtesy NASA and University of Iowa / produced and edited by Steve Spaleta