Using our NPR story “Listening to Northern Lights” (NPR Lost and Found Sound), Joel Halvorson of NASA Earth-Sun Museum Alliance made a video for the Minnesota Planetarium (for use in dome, thus the circular frame of the images):
When solar flares hit the Earth’s magnetic field, the skies at both poles can light up with auroras. The particles also create very low frequency electromagnetic waves, a type of natural radio that can be picked up around the globe. Every year sound recordist Steve McGreevy heads north where the reception is best and points his receiver at the sky.Produced for Minnesota Planetarium and Space Discovery Center, by Joel Halvorson NASA Earth-Sun Museum Alliance (ESMA), as part of the International Polar Year (IPY). Aurora photography by Calvin Hall.Natural Radio recording by Stephen McGreevy. Radio story produced by Barrett Golding, for the series NPR Lost & Found Sound.