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News and Views
Nature 453, 48-49 (1 May 2008) | doi:10.1038/453048a; Published online 30 April 2008
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Astrophysics: Rays from the dark
Rainer Plaga1
Abstract
The origin of the cosmic rays that bombard Earth has troubled physicists for nigh on a century. Supernova remnants are a favoured source — but we should keep our minds open to alternatives.
Cosmic rays fall in a steady, imperceptible rain onto Earth. Despite their stealth, they are thought to influence both the climate of our planet and the evolution of its inhabitants.
- Rainer Plaga is in the Department for New Technologies and Scientific Foundations, Federal Office for Information Security (BSI), 53175 Bonn, Germany.
Email: rainer.plaga@bsi.bund.de
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