Documentary: Listening to Northern Lights

Listening to Northern Lights (7:45)  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. This was made for use in the Minnesota Planetarium and Space Discovery Center dome, thus the circular frame of the images). Produced by Joel Halvorson NASA Earth-Sun Museum Alliance (ESMA)