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Natural nuclear accelerators
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Cosmic accelerators discovered in our galaxy by UCLA physicists, Japanese colleague

Physicists from UCLA and Japan have discovered evidence of "natural nuclear accelerators" at work in our Milky Way galaxy, based on an analysis of data from the world's largest cosmic ray detector.
The research is published Aug. 20 in the journal Physical Review Letters.
Cosmic rays of the highest energies were believed by physicists to come from remote galaxies containing enormous black holes capable of consuming stars and accelerating protons at energies comparable to that of a bullet shot from a rifle. These protons - referred to individually as "cosmic rays" - travel through space and eventually enter our galaxy.

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