Extraterrestrial chorus heard in radiation belts

Van Allen probes capture sound of electromagnetic disturbances

By Alexandra Witze, 14:43 PM December 5, 2012

Click here to hear the recording

SAN FRANCISCO — Is it alien birds singing alongside crickets? Or the sound of radio waves sweeping through Earth’s magnetosphere? A recently released recording is a little bit of both.

The soundtrack captures “chorus” waves, electromagnetic disturbances that ripple through belts of charged particles that surround Earth. The chorus becomes audible to the human ear when translated into sound waves, as heard in a recording made by space physicists at the Unive...

Source URL: https://www.sciencenews.org/article/extraterrestrial-chorus-heard-radiation-belts