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History > Ultra-High Energy Cosmic Rays Introduction to Cosmic Rays Ultra-High Energy Cosmic Rays Detection of UHE Cosmic Rays History of the Air Fluorescence Technique The Fly's Eye (1981-1993) Ultra-High Energy Cosmic Rays Energy Spectrum of Cosmic Rays The Mystery of Ultra-High Energy Cosmic Rays Acceleration Mechanisms Possible Sources of UHE Cosmic Rays Exotic Mechanisms Selected References

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