The Hunt of Diana, 1896, Arnold Bocklin

Visible frequency range: 8000Hz, fftVar = 1.0; Audio length: 120 seconds Resolution: 24 steps per second Speed: 0.125 degree per step / 3 degree per second Audio: Auroral ‘Star Wars’ (courtesy of Prof. D. Gurnett, University of Iowa)

Aurora or Northern Lights are produced by energetic electrons that strike Earth’s atmosphere and generate intense radio emissions over a frequency range of about 100 to 500 kHz. The audiovisual is based on radio emission recordings collected by the CLUSTER mission.

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