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Nature 452, 41-42 (6 March 2008) | doi:10.1038/452041a; Published online 5 March 2008

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Magnetospheric physics: Hiss from the chorus

Craig J. Rodger1 & Mark A. Clilverd1

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What is the origin of the broadband, low-intensity radio waves thought to control the radiation belts that surround Earth? The latest suggestion sees this 'hiss' emerging from an unsuspected quarter.

Hard on the heels of the Soviet Union, the United States entered the space race fractionally over 50 years ago. The scientific instrumentation of America's first Earth-orbiting satellite, Explorer 1, launched on 31 January 1958, was designed and built under the direction of one James Van Allen of the University of Iowa.

  1. Craig J. Rodger is in the Department of Physics, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
    Email: crodger@physics.otago.ac.nz
  2. Mark A. Clilverd is in the Physical Sciences Division, British Antarctic Survey, Madingley Road, Cambridge CB3 0ET, UK.
    Email: macl@bas.ac.uk

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