Monday, October 01, 2012

The Sound of Earthsong

The 'chorus' (a.k.a. dawn chorus) is an  electomagnetic signature generated by the Earth's radiation belts and which can be converted to audio by radio receivers. Now, the EMFISIS (Electric and Magnetic Field Instrument Suite and Integrated Science) instruments aboard NASA's Radiation Belt Storm Probes are recording chorus from inside the radiation belt. It reminds me a little of a whale songs.  (via io9)