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Excess positrons could come from dark matter after all

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Category: Science News Archive (2017)

The mysterious excess of high-energy positrons detected by the PAMELA satellite does not come from the two nearby pulsars, according to an international team of physicists using the High Altitude Water Cherenkov Gamma-Ray Observatory (HAWC) in Mexico. The finding opens the door to alternative explanations of the origins of the particles – including the possibility that they are created by the annihilation or decay of dark-matter particles.

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