Cosmic-Ray Hotspot Discovered, Offering Clues on Deep Space Mystery

July 9, 2014 4:22 PM

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Cosmic-Ray Hotspot Discovered, Offering Clues on Deep Space Mystery

A powerful telescope may have found clues to the origin of ultra-high-energy particles that bombard the Earth.

A "hotspot" in the sky near the Big Dipper may be a major source of the ultra-high-energy cosmic rays that routinely bombard the Earth, report physicists using a giant array of specialized telescopes in the Utah desert.

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